diff --git a/README.md b/README.md
index c209cda..a065f21 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-# kratos-utils
\ No newline at end of file
+# kratos-utils
diff --git a/crypto/crypto.go b/crypto/crypto.go
new file mode 100644
index 0000000..454c786
--- /dev/null
+++ b/crypto/crypto.go
@@ -0,0 +1,17 @@
+package crypto
+
+import (
+	"golang.org/x/crypto/bcrypt"
+)
+
+// HashPassword 加密密码
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 10)
+	return string(bytes), err
+}
+
+// CheckPasswordHash 校验密码
+func CheckPasswordHash(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}
diff --git a/crypto/crypto_test.go b/crypto/crypto_test.go
new file mode 100644
index 0000000..b53215f
--- /dev/null
+++ b/crypto/crypto_test.go
@@ -0,0 +1,32 @@
+package crypto
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/assert"
+	"strings"
+	"testing"
+)
+
+func TestHashPassword(t *testing.T) {
+	text := "admin"
+	hash, _ := HashPassword(text)
+	fmt.Println(hash)
+}
+
+func TestCheckPasswordHash(t *testing.T) {
+	text := "123456"
+	hash3 := "$2a$10$ygWrRwHCzg2GUpz0UK40kuWAGva121VkScpcdMNsDCih2U/bL2qYy"
+	bMatched := CheckPasswordHash(text, hash3)
+	assert.True(t, bMatched)
+
+	bMatched = CheckPasswordHash(text, hash3)
+	assert.True(t, bMatched)
+}
+
+func TestJwtToken(t *testing.T) {
+	const bearerWord string = "Bearer"
+	token := "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjowfQ.XgcKAAjHbA6o4sxxbEaMi05ingWvKdCNnyW9wowbJvs"
+	auths := strings.SplitN(token, " ", 2)
+	assert.Equal(t, len(auths), 2)
+	assert.Equal(t, strings.EqualFold(auths[0], bearerWord), true, "JWT token is missing")
+}
diff --git a/entgo/mixin/autoincrement_id.go b/entgo/mixin/autoincrement_id.go
new file mode 100644
index 0000000..1faecf8
--- /dev/null
+++ b/entgo/mixin/autoincrement_id.go
@@ -0,0 +1,39 @@
+package mixin
+
+import (
+	"entgo.io/contrib/entproto"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+	"entgo.io/ent/schema/mixin"
+)
+
+var _ ent.Mixin = (*AutoIncrementId)(nil)
+
+type AutoIncrementId struct{ mixin.Schema }
+
+func (AutoIncrementId) Fields() []ent.Field {
+	return []ent.Field{
+		field.Uint32("id").
+			Comment("id").
+			StructTag(`json:"id,omitempty"`).
+			SchemaType(map[string]string{
+				dialect.MySQL:    "int",
+				dialect.Postgres: "serial",
+			}).
+			Annotations(
+				entproto.Field(1),
+			).
+			Positive().
+			Immutable().
+			Unique(),
+	}
+}
+
+// Indexes of the AutoIncrementId.
+func (AutoIncrementId) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("id"),
+	}
+}
diff --git a/entgo/mixin/operator.go b/entgo/mixin/operator.go
new file mode 100644
index 0000000..88c7b58
--- /dev/null
+++ b/entgo/mixin/operator.go
@@ -0,0 +1,85 @@
+package mixin
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/mixin"
+)
+
+var _ ent.Mixin = (*CreateBy)(nil)
+
+type CreateBy struct{ mixin.Schema }
+
+func (CreateBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("create_by").
+			Comment("创建者").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*UpdateBy)(nil)
+
+type UpdateBy struct{ mixin.Schema }
+
+func (UpdateBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("update_by").
+			Comment("更新者").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*DeleteBy)(nil)
+
+type DeleteBy struct{ mixin.Schema }
+
+func (DeleteBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("delete_by").
+			Comment("删除者").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*CreatedBy)(nil)
+
+type CreatedBy struct{ mixin.Schema }
+
+func (CreatedBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("created_by").
+			Comment("创建者").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*UpdatedBy)(nil)
+
+type UpdatedBy struct{ mixin.Schema }
+
+func (UpdatedBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("updated_by").
+			Comment("更新者").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*DeletedBy)(nil)
+
+type DeletedBy struct{ mixin.Schema }
+
+func (DeletedBy) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int("deleted_by").
+			Comment("删除者").
+			Optional().
+			Nillable(),
+	}
+}
diff --git a/entgo/mixin/time.go b/entgo/mixin/time.go
new file mode 100644
index 0000000..337f29f
--- /dev/null
+++ b/entgo/mixin/time.go
@@ -0,0 +1,122 @@
+package mixin
+
+import (
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/mixin"
+)
+
+var _ ent.Mixin = (*CreateTime)(nil)
+
+type CreateTime struct{ mixin.Schema }
+
+func (CreateTime) Fields() []ent.Field {
+	return []ent.Field{
+		// 创建时间，毫秒
+		field.Int64("create_time").
+			Comment("创建时间").
+			Immutable().
+			Optional().
+			Nillable().
+			DefaultFunc(time.Now().UnixMilli),
+	}
+}
+
+var _ ent.Mixin = (*UpdateTime)(nil)
+
+type UpdateTime struct{ mixin.Schema }
+
+func (UpdateTime) Fields() []ent.Field {
+	return []ent.Field{
+		// 更新时间，毫秒
+		// 需要注意的是，如果不是程序自动更新，那么这个字段不会被更新，除非在数据库里面下触发器更新。
+		field.Int64("update_time").
+			Comment("更新时间").
+			Optional().
+			Nillable().
+			UpdateDefault(time.Now().UnixMilli),
+	}
+}
+
+var _ ent.Mixin = (*DeleteTime)(nil)
+
+type DeleteTime struct{ mixin.Schema }
+
+func (DeleteTime) Fields() []ent.Field {
+	return []ent.Field{
+		// 删除时间，毫秒
+		field.Int64("delete_time").
+			Comment("删除时间").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*Time)(nil)
+
+type Time struct{ mixin.Schema }
+
+func (Time) Fields() []ent.Field {
+	var fields []ent.Field
+	fields = append(fields, CreateTime{}.Fields()...)
+	fields = append(fields, UpdateTime{}.Fields()...)
+	fields = append(fields, DeleteTime{}.Fields()...)
+	return fields
+}
+
+var _ ent.Mixin = (*CreatedAt)(nil)
+
+type CreatedAt struct{ mixin.Schema }
+
+func (CreatedAt) Fields() []ent.Field {
+	return []ent.Field{
+		// 创建时间
+		field.Time("created_at").
+			Comment("创建时间").
+			Immutable().
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*UpdatedAt)(nil)
+
+type UpdatedAt struct{ mixin.Schema }
+
+func (UpdatedAt) Fields() []ent.Field {
+	return []ent.Field{
+		// 更新时间
+		field.Time("updated_at").
+			Comment("更新时间").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*DeletedAt)(nil)
+
+type DeletedAt struct{ mixin.Schema }
+
+func (DeletedAt) Fields() []ent.Field {
+	return []ent.Field{
+		// 删除时间
+		field.Time("deleted_at").
+			Comment("删除时间").
+			Optional().
+			Nillable(),
+	}
+}
+
+var _ ent.Mixin = (*TimeAt)(nil)
+
+type TimeAt struct{ mixin.Schema }
+
+func (TimeAt) Fields() []ent.Field {
+	var fields []ent.Field
+	fields = append(fields, CreatedAt{}.Fields()...)
+	fields = append(fields, UpdatedAt{}.Fields()...)
+	fields = append(fields, DeletedAt{}.Fields()...)
+	return fields
+}
diff --git a/entgo/mixin/uuid_id.go b/entgo/mixin/uuid_id.go
new file mode 100644
index 0000000..70470d7
--- /dev/null
+++ b/entgo/mixin/uuid_id.go
@@ -0,0 +1,31 @@
+package mixin
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+	"entgo.io/ent/schema/mixin"
+	"github.com/google/uuid"
+)
+
+var _ ent.Mixin = (*UuidId)(nil)
+
+type UuidId struct{ mixin.Schema }
+
+func (UuidId) Fields() []ent.Field {
+	return []ent.Field{
+		field.UUID("id", uuid.UUID{}).
+			Comment("id").
+			Default(uuid.New).
+			Unique().
+			Immutable().
+			StructTag(`json:"id,omitempty"`),
+	}
+}
+
+// Indexes of the UuidId.
+func (UuidId) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("id"),
+	}
+}
diff --git a/entgo/util.go b/entgo/util.go
new file mode 100644
index 0000000..0bf149e
--- /dev/null
+++ b/entgo/util.go
@@ -0,0 +1,61 @@
+package entgo
+
+import (
+	"encoding/json"
+	"strings"
+
+	"entgo.io/ent/dialect/sql"
+
+	"kratos-utils/stringcase"
+)
+
+type WhereConditions []func(s *sql.Selector)
+type OrderConditions []func(*sql.Selector)
+
+// QueryCommandToSelector 查询命令转换为选择器
+func QueryCommandToSelector(queryCmd, orderByCmd map[string]string) (WhereConditions, OrderConditions) {
+	var whereCond WhereConditions
+	var orderCond OrderConditions
+
+	if queryCmd != nil {
+		queryStr, ok := queryCmd["query"]
+		if ok {
+			var queryMap map[string]string
+			err := json.Unmarshal([]byte(queryStr), &queryMap)
+			if err == nil {
+				for k, v := range queryMap {
+					key := stringcase.ToSnakeCase(k)
+					value := v
+					whereCond = append(whereCond, func(s *sql.Selector) {
+						s.Where(sql.EQ(s.C(key), value))
+					})
+				}
+			}
+		}
+	}
+
+	if orderByCmd != nil {
+		orderByStr, ok := orderByCmd["orderBy"]
+		if ok {
+			var orderByMap map[string]string
+			err := json.Unmarshal([]byte(orderByStr), &orderByMap)
+			if err == nil {
+				for k, v := range orderByMap {
+					key := stringcase.ToSnakeCase(k)
+					switch strings.ToLower(v) {
+					case "desc", "descending", "descend":
+						orderCond = append(orderCond, func(s *sql.Selector) {
+							s.OrderBy(sql.Desc(s.C(key)))
+						})
+					case "asc", "ascending", "ascend":
+						orderCond = append(orderCond, func(s *sql.Selector) {
+							s.OrderBy(sql.Asc(s.C(key)))
+						})
+					}
+				}
+			}
+		}
+	}
+
+	return whereCond, orderCond
+}
diff --git a/geoip/GeoLite2-City.mmdb b/geoip/GeoLite2-City.mmdb
new file mode 100644
index 0000000..703e7e7
Binary files /dev/null and b/geoip/GeoLite2-City.mmdb differ
diff --git a/geoip/geoip.go b/geoip/geoip.go
new file mode 100644
index 0000000..b0d4dd6
--- /dev/null
+++ b/geoip/geoip.go
@@ -0,0 +1,69 @@
+package geoip
+
+import (
+	_ "embed"
+	"errors"
+	"net"
+
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/oschwald/geoip2-golang"
+)
+
+//go:embed GeoLite2-City.mmdb
+var geoipMmdbByte []byte
+
+type Result struct {
+	Country  string // 国家
+	Province string // 省
+	City     string // 城市
+}
+
+// GeoIp 地理位置解析结构体
+type GeoIp struct {
+	db             *geoip2.Reader
+	outputLanguage string
+}
+
+// NewGeoIp .
+func NewGeoIp() (geoip *GeoIp, err error) {
+	db, err := geoip2.FromBytes(geoipMmdbByte)
+	if err != nil {
+		return nil, err
+	}
+	return &GeoIp{db: db, outputLanguage: "zh-CN"}, nil
+}
+
+func (g *GeoIp) Close() (err error) {
+	return g.db.Close()
+}
+
+// SetLanguage 设置输出的语言，默认为：zh-CN
+func (g *GeoIp) SetLanguage(code string) {
+	g.outputLanguage = code
+}
+
+func (g *GeoIp) query(rawIP string) (city *geoip2.City, err error) {
+	ip := net.ParseIP(rawIP)
+	if ip == nil {
+		return nil, errors.New("invalid ip")
+	}
+
+	return g.db.City(ip)
+}
+
+// GetAreaFromIP 通过IP获取地区
+func (g *GeoIp) GetAreaFromIP(rawIP string) (ret Result, err error) {
+	record, err := g.query(rawIP)
+	if err != nil {
+		log.Fatal(err)
+		return ret, err
+	}
+
+	ret.Country = record.Country.Names[g.outputLanguage]
+	if len(record.Subdivisions) > 0 {
+		ret.Province = record.Subdivisions[0].Names[g.outputLanguage]
+	}
+	ret.City = record.City.Names[g.outputLanguage]
+
+	return
+}
diff --git a/geoip/geoip_test.go b/geoip/geoip_test.go
new file mode 100644
index 0000000..f45b851
--- /dev/null
+++ b/geoip/geoip_test.go
@@ -0,0 +1,17 @@
+package geoip
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestGeoIp(t *testing.T) {
+	g, err := NewGeoIp()
+	assert.Nil(t, err)
+
+	ret, err := g.GetAreaFromIP("47.108.149.89")
+	assert.Nil(t, err)
+	assert.Equal(t, ret.Country, "中国")
+	assert.Equal(t, ret.Province, "四川省")
+	assert.Equal(t, ret.City, "成都")
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..220a4a4
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,38 @@
+module kratos-utils
+
+go 1.20
+
+require (
+	entgo.io/contrib v0.4.5
+	entgo.io/ent v0.12.3
+	github.com/go-kratos/kratos/v2 v2.6.2
+	github.com/google/uuid v1.3.0
+	github.com/oschwald/geoip2-golang v1.8.0
+	github.com/stretchr/testify v1.8.2
+	golang.org/x/crypto v0.9.0
+)
+
+require (
+	ariga.io/atlas v0.10.2-0.20230427182402-87a07dfb83bf // indirect
+	github.com/agext/levenshtein v1.2.1 // indirect
+	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-openapi/inflect v0.19.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/hashicorp/hcl/v2 v2.13.0 // indirect
+	github.com/jhump/protoreflect v1.10.1 // indirect
+	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/oschwald/maxminddb-golang v1.10.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/zclconf/go-cty v1.8.0 // indirect
+	go.uber.org/atomic v1.10.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/tools v0.8.1-0.20230428195545-5283a0178901 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..5d744a8
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,188 @@
+ariga.io/atlas v0.10.2-0.20230427182402-87a07dfb83bf h1:Tq2DRB39ZHScIwWACjPKLv5oEErv7zv6PBb5RTz5CKA=
+ariga.io/atlas v0.10.2-0.20230427182402-87a07dfb83bf/go.mod h1:+TR129FJZ5Lvzms6dvCeGWh1yR6hMvmXBhug4hrNIGk=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+entgo.io/contrib v0.4.5 h1:BFaOHwFLE8WZjVJadP0XHCIaxgcC1BAtUvAyw7M/GHk=
+entgo.io/contrib v0.4.5/go.mod h1:wpZyq2DJgthugFvDBlaqMXj9mV4/9ebyGEn7xlTVQqE=
+entgo.io/ent v0.12.3 h1:N5lO2EOrHpCH5HYfiMOCHYbo+oh5M8GjT0/cx5x6xkk=
+entgo.io/ent v0.12.3/go.mod h1:AigGGx+tbrBBYHAzGOg8ND661E5cxx1Uiu5o/otJ6Yg=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
+github.com/agext/levenshtein v1.2.1 h1:QmvMAjj2aEICytGiWzmxoE0x2KZvE0fvmqMOfy2tjT8=
+github.com/agext/levenshtein v1.2.1/go.mod h1:JEDfjyjHDjOF/1e4FlBE/PkbqA9OfWu2ki2W0IB5558=
+github.com/apparentlymart/go-textseg/v13 v13.0.0 h1:Y+KvPE1NYz0xl601PVImeQfFyEy6iT90AvPUL1NNfNw=
+github.com/apparentlymart/go-textseg/v13 v13.0.0/go.mod h1:ZK2fH7c4NqDTLtiYLvIkEghdlcqw7yxLeM89kiTRPUo=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/go-kratos/kratos/v2 v2.6.2 h1:9ar3d6tbci4GhqUsar18MB20hgFDOV70buDkWGUrX3M=
+github.com/go-kratos/kratos/v2 v2.6.2/go.mod h1:xTeAeI9iYBP8MauISfxmRGSmKdDTLRQ3rbarKYmt6P4=
+github.com/go-openapi/inflect v0.19.0 h1:9jCH9scKIbHeV9m12SmPilScz6krDxKRasNNSNPXu/4=
+github.com/go-openapi/inflect v0.19.0/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
+github.com/go-test/deep v1.0.3 h1:ZrJSEWsXzPOxaZnFteGEfooLba+ju3FYIbOrS+rQd68=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
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+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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diff --git a/pagination/pagination.go b/pagination/pagination.go
new file mode 100644
index 0000000..2740730
--- /dev/null
+++ b/pagination/pagination.go
@@ -0,0 +1,5 @@
+package pagination
+
+func GetPageOffset(pageNum, pageSize int32) int {
+	return int((pageNum - 1) * pageSize)
+}
diff --git a/stringcase/stringcase.go b/stringcase/stringcase.go
new file mode 100644
index 0000000..f9ac0c3
--- /dev/null
+++ b/stringcase/stringcase.go
@@ -0,0 +1,119 @@
+package stringcase
+
+import (
+	"strings"
+	"unicode"
+)
+
+// ToSnakeCase 把字符转换为 蛇形命名法（snake_case）
+func ToSnakeCase(input string) string {
+	if input == "" {
+		return input
+	}
+	if len(input) == 1 {
+		return strings.ToLower(input)
+	}
+
+	input = strings.Replace(input, " ", "", -1)
+
+	source := []rune(input)
+	dist := strings.Builder{}
+	dist.Grow(len(input) + len(input)/3) // avoid reallocation memory, 33% ~ 50% is recommended
+	skipNext := false
+	for i := 0; i < len(source); i++ {
+		cur := source[i]
+		switch cur {
+		case '-', '_':
+			dist.WriteRune('_')
+			skipNext = true
+			continue
+		}
+		if unicode.IsLower(cur) || unicode.IsDigit(cur) {
+			dist.WriteRune(cur)
+			continue
+		}
+
+		if i == 0 {
+			dist.WriteRune(unicode.ToLower(cur))
+			continue
+		}
+
+		last := source[i-1]
+		if (!unicode.IsLetter(last)) || unicode.IsLower(last) {
+			if skipNext {
+				skipNext = false
+			} else {
+				dist.WriteRune('_')
+			}
+			dist.WriteRune(unicode.ToLower(cur))
+			continue
+		}
+		// last is upper case
+		if i < len(source)-1 {
+			next := source[i+1]
+			if unicode.IsLower(next) {
+				if skipNext {
+					skipNext = false
+				} else {
+					dist.WriteRune('_')
+				}
+				dist.WriteRune(unicode.ToLower(cur))
+				continue
+			}
+		}
+		dist.WriteRune(unicode.ToLower(cur))
+	}
+
+	return dist.String()
+}
+
+// ToPascalCase 把字符转换为 帕斯卡命名/大驼峰命名法（CamelCase）
+func ToPascalCase(input string) string {
+	return toCamelCase(input, true)
+}
+
+// ToLowCamelCase 把字符转换为 小驼峰命名法（lowerCamelCase）
+func ToLowCamelCase(input string) string {
+	return toCamelCase(input, false)
+}
+
+func toCamelCase(s string, initCase bool) string {
+	s = strings.TrimSpace(s)
+	if s == "" {
+		return s
+	}
+
+	var uppercaseAcronym = map[string]string{}
+	if a, ok := uppercaseAcronym[s]; ok {
+		s = a
+	}
+
+	n := strings.Builder{}
+	n.Grow(len(s))
+	capNext := initCase
+	for i, v := range []byte(s) {
+		vIsCap := v >= 'A' && v <= 'Z'
+		vIsLow := v >= 'a' && v <= 'z'
+		if capNext {
+			if vIsLow {
+				v += 'A'
+				v -= 'a'
+			}
+		} else if i == 0 {
+			if vIsCap {
+				v += 'a'
+				v -= 'A'
+			}
+		}
+		if vIsCap || vIsLow {
+			n.WriteByte(v)
+			capNext = false
+		} else if vIsNum := v >= '0' && v <= '9'; vIsNum {
+			n.WriteByte(v)
+			capNext = true
+		} else {
+			capNext = v == '_' || v == ' ' || v == '-' || v == '.'
+		}
+	}
+	return n.String()
+}
diff --git a/stringcase/stringcase_test.go b/stringcase/stringcase_test.go
new file mode 100644
index 0000000..dede096
--- /dev/null
+++ b/stringcase/stringcase_test.go
@@ -0,0 +1,24 @@
+package stringcase
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestToLowCamelCase(t *testing.T) {
+	fmt.Println(ToLowCamelCase("snake_case"))
+	fmt.Println(ToLowCamelCase("CamelCase"))
+	fmt.Println(ToLowCamelCase("lowerCamelCase"))
+}
+
+func TestToPascalCase(t *testing.T) {
+	fmt.Println(ToPascalCase("snake_case"))
+	fmt.Println(ToPascalCase("CamelCase"))
+	fmt.Println(ToPascalCase("lowerCamelCase"))
+}
+
+func TestToSnakeCase(t *testing.T) {
+	fmt.Println(ToSnakeCase("snake_case"))
+	fmt.Println(ToSnakeCase("CamelCase"))
+	fmt.Println(ToSnakeCase("lowerCamelCase"))
+}
diff --git a/time/util.go b/time/util.go
new file mode 100644
index 0000000..72a402f
--- /dev/null
+++ b/time/util.go
@@ -0,0 +1,139 @@
+package util
+
+import "time"
+
+const (
+	TimeLayout = "2006-01-02 15:04:05"
+	DateLayout = "2006-01-02"
+)
+
+// UnixMilliToStringPtr 毫秒时间戳转字符串
+func UnixMilliToStringPtr(tm *int64) *string {
+	if tm == nil {
+		return nil
+	}
+	str := time.UnixMilli(*tm).Format(TimeLayout)
+	return &str
+}
+
+// StringTimeToTime 字符串转时间
+func StringTimeToTime(tm *string) *time.Time {
+	if tm == nil {
+		return nil
+	}
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	theTime, err := time.ParseInLocation(TimeLayout, *tm, loc)
+	if err != nil {
+		return nil
+	}
+	return &theTime
+}
+
+// StringDateToTime 字符串转时间
+func StringDateToTime(tm *string) *time.Time {
+	if tm == nil {
+		return nil
+	}
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	theTime, err := time.ParseInLocation(DateLayout, *tm, loc)
+	if err != nil {
+		return nil
+	}
+	return &theTime
+}
+
+// StringToUnixMilliInt64Ptr 字符串转毫秒时间戳
+func StringToUnixMilliInt64Ptr(tm *string) *int64 {
+	theTime := StringTimeToTime(tm)
+	if theTime == nil {
+		return nil
+	}
+	unixTime := theTime.UnixMilli()
+	return &unixTime
+}
+
+// GetCurrentDayTime 获取今天的时间
+func GetCurrentDayTime() (time.Time, time.Time) {
+	now := time.Now()
+	startDate := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	endDate := time.Date(now.Year(), now.Month(), now.Day(), 23, 59, 59, 0, now.Location())
+	return startDate, endDate
+}
+
+// GetCurrentMonthTime 获取本月的时间
+func GetCurrentMonthTime() (time.Time, time.Time) {
+	now := time.Now()
+	firstDay := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location())
+	lastDay := firstDay.AddDate(0, 1, -1)
+	endDate := time.Date(lastDay.Year(), lastDay.Month(), lastDay.Day(), 23, 59, 59, 0, now.Location())
+	return firstDay, endDate
+}
+
+// GetCurrentYearTime 获取今年的时间
+func GetCurrentYearTime() (time.Time, time.Time) {
+	now := time.Now()
+	firstDay := time.Date(now.Year(), time.January, 1, 0, 0, 0, 0, now.Location())
+	lastDay := firstDay.AddDate(1, 0, -1)
+	endDate := time.Date(lastDay.Year(), lastDay.Month(), lastDay.Day(), 23, 59, 59, 0, now.Location())
+	return firstDay, endDate
+}
+
+// GetCurrentDayDateString 获取今天的日期字符串
+func GetCurrentDayDateString() (string, string) {
+	firstDay, lastDay := GetCurrentDayTime()
+
+	startDate := firstDay.Format(DateLayout)
+	endDate := lastDay.Format(DateLayout)
+
+	return startDate, endDate
+}
+
+// GetCurrentMonthDateString 获取本月的日期字符串
+func GetCurrentMonthDateString() (string, string) {
+	firstDay, lastDay := GetCurrentMonthTime()
+
+	startDate := firstDay.Format(DateLayout)
+	endDate := lastDay.Format(DateLayout)
+
+	return startDate, endDate
+}
+
+// GetCurrentYearDateString 获取今年的日期字符串
+func GetCurrentYearDateString() (string, string) {
+	firstDay, lastDay := GetCurrentYearTime()
+
+	startDate := firstDay.Format(DateLayout)
+	endDate := lastDay.Format(DateLayout)
+
+	return startDate, endDate
+}
+
+// GetCurrentDayTimeString 获取今天的时间字符串
+func GetCurrentDayTimeString() (string, string) {
+	firstDay, lastDay := GetCurrentDayTime()
+
+	startDate := firstDay.Format(TimeLayout)
+	endDate := lastDay.Format(TimeLayout)
+
+	return startDate, endDate
+}
+
+// GetCurrentMonthTimeString 获取本月的时间字符串
+func GetCurrentMonthTimeString() (string, string) {
+	firstDay, lastDay := GetCurrentMonthTime()
+
+	startDate := firstDay.Format(TimeLayout)
+	endDate := lastDay.Format(TimeLayout)
+
+	return startDate, endDate
+}
+
+// GetCurrentYearTimeString 获取今年的时间字符串
+func GetCurrentYearTimeString() (string, string) {
+	firstDay, lastDay := GetCurrentYearTime()
+
+	startDate := firstDay.Format(TimeLayout)
+	endDate := lastDay.Format(TimeLayout)
+
+	return startDate, endDate
+}
diff --git a/time/util_test.go b/time/util_test.go
new file mode 100644
index 0000000..f1fd29f
--- /dev/null
+++ b/time/util_test.go
@@ -0,0 +1,43 @@
+package util
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"kratos-utils/trans"
+)
+
+func TestUnixMilliToStringPtr(t *testing.T) {
+	now := time.Now().UnixMilli()
+	str := UnixMilliToStringPtr(&now)
+	fmt.Println(now)
+	fmt.Println(*str)
+
+	fmt.Println(*UnixMilliToStringPtr(trans.Int64(1677135885288)))
+	fmt.Println(*UnixMilliToStringPtr(trans.Int64(1677647430853)))
+	fmt.Println(*UnixMilliToStringPtr(trans.Int64(1677647946234)))
+
+	fmt.Println(*StringToUnixMilliInt64Ptr(trans.String("2023-03-01 00:00:00")))
+
+	fmt.Println(*StringTimeToTime(trans.String("2023-03-01 00:00:00")))
+	fmt.Println(*StringDateToTime(trans.String("2023-03-01")))
+}
+
+func TestGetCurrentDateString(t *testing.T) {
+	fmt.Println(GetCurrentDayDateString())
+	fmt.Println(GetCurrentMonthDateString())
+	fmt.Println(GetCurrentYearDateString())
+}
+
+func TestGetCurrentTime(t *testing.T) {
+	fmt.Println(GetCurrentDayTime())
+	fmt.Println(GetCurrentMonthTime())
+	fmt.Println(GetCurrentYearTime())
+}
+
+func TestGetCurrentTimeString(t *testing.T) {
+	fmt.Println(GetCurrentDayTimeString())
+	fmt.Println(GetCurrentMonthTimeString())
+	fmt.Println(GetCurrentYearTimeString())
+}
diff --git a/trans/trans.go b/trans/trans.go
new file mode 100644
index 0000000..10e7ef5
--- /dev/null
+++ b/trans/trans.go
@@ -0,0 +1,504 @@
+package trans
+
+import "time"
+
+func String(a string) *string {
+	return &a
+}
+
+func StringValue(a *string) string {
+	if a == nil {
+		return ""
+	}
+	return *a
+}
+
+func Int(a int) *int {
+	return &a
+}
+
+func IntValue(a *int) int {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Int8(a int8) *int8 {
+	return &a
+}
+
+func Int8Value(a *int8) int8 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Int16(a int16) *int16 {
+	return &a
+}
+
+func Int16Value(a *int16) int16 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Int32(a int32) *int32 {
+	return &a
+}
+
+func Int32Value(a *int32) int32 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Int64(a int64) *int64 {
+	return &a
+}
+
+func Int64Value(a *int64) int64 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Bool(a bool) *bool {
+	return &a
+}
+
+func BoolValue(a *bool) bool {
+	if a == nil {
+		return false
+	}
+	return *a
+}
+
+func Uint(a uint) *uint {
+	return &a
+}
+
+func UintValue(a *uint) uint {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Uint8(a uint8) *uint8 {
+	return &a
+}
+
+func Uint8Value(a *uint8) uint8 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Uint16(a uint16) *uint16 {
+	return &a
+}
+
+func Uint16Value(a *uint16) uint16 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Uint32(a uint32) *uint32 {
+	return &a
+}
+
+func Uint32Value(a *uint32) uint32 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Uint64(a uint64) *uint64 {
+	return &a
+}
+
+func Uint64Value(a *uint64) uint64 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Float32(a float32) *float32 {
+	return &a
+}
+
+func Float32Value(a *float32) float32 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Float64(a float64) *float64 {
+	return &a
+}
+
+func Float64Value(a *float64) float64 {
+	if a == nil {
+		return 0
+	}
+	return *a
+}
+
+func Time(a time.Time) *time.Time {
+	return &a
+}
+
+func TimeValue(a *time.Time) time.Time {
+	if a == nil {
+		return time.Now()
+	}
+	return *a
+}
+
+func IntSlice(a []int) []*int {
+	if a == nil {
+		return nil
+	}
+	res := make([]*int, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func IntValueSlice(a []*int) []int {
+	if a == nil {
+		return nil
+	}
+	res := make([]int, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Int8Slice(a []int8) []*int8 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*int8, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Int8ValueSlice(a []*int8) []int8 {
+	if a == nil {
+		return nil
+	}
+	res := make([]int8, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Int16Slice(a []int16) []*int16 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*int16, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Int16ValueSlice(a []*int16) []int16 {
+	if a == nil {
+		return nil
+	}
+	res := make([]int16, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Int32Slice(a []int32) []*int32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*int32, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Int32ValueSlice(a []*int32) []int32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]int32, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Int64Slice(a []int64) []*int64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*int64, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Int64ValueSlice(a []*int64) []int64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]int64, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func UintSlice(a []uint) []*uint {
+	if a == nil {
+		return nil
+	}
+	res := make([]*uint, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func UintValueSlice(a []*uint) []uint {
+	if a == nil {
+		return nil
+	}
+	res := make([]uint, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Uint8Slice(a []uint8) []*uint8 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*uint8, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Uint8ValueSlice(a []*uint8) []uint8 {
+	if a == nil {
+		return nil
+	}
+	res := make([]uint8, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Uint16Slice(a []uint16) []*uint16 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*uint16, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Uint16ValueSlice(a []*uint16) []uint16 {
+	if a == nil {
+		return nil
+	}
+	res := make([]uint16, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Uint32Slice(a []uint32) []*uint32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*uint32, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Uint32ValueSlice(a []*uint32) []uint32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]uint32, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Uint64Slice(a []uint64) []*uint64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*uint64, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Uint64ValueSlice(a []*uint64) []uint64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]uint64, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Float32Slice(a []float32) []*float32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*float32, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Float32ValueSlice(a []*float32) []float32 {
+	if a == nil {
+		return nil
+	}
+	res := make([]float32, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func Float64Slice(a []float64) []*float64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]*float64, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func Float64ValueSlice(a []*float64) []float64 {
+	if a == nil {
+		return nil
+	}
+	res := make([]float64, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func StringSlice(a []string) []*string {
+	if a == nil {
+		return nil
+	}
+	res := make([]*string, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func StringSliceValue(a []*string) []string {
+	if a == nil {
+		return nil
+	}
+	res := make([]string, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
+
+func BoolSlice(a []bool) []*bool {
+	if a == nil {
+		return nil
+	}
+	res := make([]*bool, len(a))
+	for i := 0; i < len(a); i++ {
+		res[i] = &a[i]
+	}
+	return res
+}
+
+func BoolSliceValue(a []*bool) []bool {
+	if a == nil {
+		return nil
+	}
+	res := make([]bool, len(a))
+	for i := 0; i < len(a); i++ {
+		if a[i] != nil {
+			res[i] = *a[i]
+		}
+	}
+	return res
+}
diff --git a/trans/trans_test.go b/trans/trans_test.go
new file mode 100644
index 0000000..c075321
--- /dev/null
+++ b/trans/trans_test.go
@@ -0,0 +1,169 @@
+package trans
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_Trans(t *testing.T) {
+	str := String("tea")
+	strVal := StringValue(str)
+	assert.Equal(t, "tea", strVal)
+	assert.Equal(t, "", StringValue(nil))
+
+	strSlice := StringSlice([]string{"tea"})
+	strSliceVal := StringSliceValue(strSlice)
+	assert.Equal(t, []string{"tea"}, strSliceVal)
+	assert.Nil(t, StringSlice(nil))
+	assert.Nil(t, StringSliceValue(nil))
+
+	b := Bool(true)
+	bVal := BoolValue(b)
+	assert.Equal(t, true, bVal)
+	assert.Equal(t, false, BoolValue(nil))
+
+	bSlice := BoolSlice([]bool{false})
+	bSliceVal := BoolSliceValue(bSlice)
+	assert.Equal(t, []bool{false}, bSliceVal)
+	assert.Nil(t, BoolSlice(nil))
+	assert.Nil(t, BoolSliceValue(nil))
+
+	f64 := Float64(2.00)
+	f64Val := Float64Value(f64)
+	assert.Equal(t, 2.00, f64Val)
+	assert.Equal(t, float64(0), Float64Value(nil))
+
+	f32 := Float32(2.00)
+	f32Val := Float32Value(f32)
+	assert.Equal(t, float32(2.00), f32Val)
+	assert.Equal(t, float32(0), Float32Value(nil))
+
+	f64Slice := Float64Slice([]float64{2.00})
+	f64SliceVal := Float64ValueSlice(f64Slice)
+	assert.Equal(t, []float64{2.00}, f64SliceVal)
+	assert.Nil(t, Float64Slice(nil))
+	assert.Nil(t, Float64ValueSlice(nil))
+
+	f32Slice := Float32Slice([]float32{2.00})
+	f32SliceVal := Float32ValueSlice(f32Slice)
+	assert.Equal(t, []float32{2.00}, f32SliceVal)
+	assert.Nil(t, Float32Slice(nil))
+	assert.Nil(t, Float32ValueSlice(nil))
+
+	i := Int(1)
+	iVal := IntValue(i)
+	assert.Equal(t, 1, iVal)
+	assert.Equal(t, 0, IntValue(nil))
+
+	i8 := Int8(int8(1))
+	i8Val := Int8Value(i8)
+	assert.Equal(t, int8(1), i8Val)
+	assert.Equal(t, int8(0), Int8Value(nil))
+
+	i16 := Int16(int16(1))
+	i16Val := Int16Value(i16)
+	assert.Equal(t, int16(1), i16Val)
+	assert.Equal(t, int16(0), Int16Value(nil))
+
+	i32 := Int32(int32(1))
+	i32Val := Int32Value(i32)
+	assert.Equal(t, int32(1), i32Val)
+	assert.Equal(t, int32(0), Int32Value(nil))
+
+	i64 := Int64(int64(1))
+	i64Val := Int64Value(i64)
+	assert.Equal(t, int64(1), i64Val)
+	assert.Equal(t, int64(0), Int64Value(nil))
+
+	iSlice := IntSlice([]int{1})
+	iSliceVal := IntValueSlice(iSlice)
+	assert.Equal(t, []int{1}, iSliceVal)
+	assert.Nil(t, IntSlice(nil))
+	assert.Nil(t, IntValueSlice(nil))
+
+	i8Slice := Int8Slice([]int8{1})
+	i8ValSlice := Int8ValueSlice(i8Slice)
+	assert.Equal(t, []int8{1}, i8ValSlice)
+	assert.Nil(t, Int8Slice(nil))
+	assert.Nil(t, Int8ValueSlice(nil))
+
+	i16Slice := Int16Slice([]int16{1})
+	i16ValSlice := Int16ValueSlice(i16Slice)
+	assert.Equal(t, []int16{1}, i16ValSlice)
+	assert.Nil(t, Int16Slice(nil))
+	assert.Nil(t, Int16ValueSlice(nil))
+
+	i32Slice := Int32Slice([]int32{1})
+	i32ValSlice := Int32ValueSlice(i32Slice)
+	assert.Equal(t, []int32{1}, i32ValSlice)
+	assert.Nil(t, Int32Slice(nil))
+	assert.Nil(t, Int32ValueSlice(nil))
+
+	i64Slice := Int64Slice([]int64{1})
+	i64ValSlice := Int64ValueSlice(i64Slice)
+	assert.Equal(t, []int64{1}, i64ValSlice)
+	assert.Nil(t, Int64Slice(nil))
+	assert.Nil(t, Int64ValueSlice(nil))
+
+	ui := Uint(1)
+	uiVal := UintValue(ui)
+	assert.Equal(t, uint(1), uiVal)
+	assert.Equal(t, uint(0), UintValue(nil))
+
+	ui8 := Uint8(uint8(1))
+	ui8Val := Uint8Value(ui8)
+	assert.Equal(t, uint8(1), ui8Val)
+	assert.Equal(t, uint8(0), Uint8Value(nil))
+
+	ui16 := Uint16(uint16(1))
+	ui16Val := Uint16Value(ui16)
+	assert.Equal(t, uint16(1), ui16Val)
+	assert.Equal(t, uint16(0), Uint16Value(nil))
+
+	ui32 := Uint32(uint32(1))
+	ui32Val := Uint32Value(ui32)
+	assert.Equal(t, uint32(1), ui32Val)
+	assert.Equal(t, uint32(0), Uint32Value(nil))
+
+	ui64 := Uint64(uint64(1))
+	ui64Val := Uint64Value(ui64)
+	assert.Equal(t, uint64(1), ui64Val)
+	assert.Equal(t, uint64(0), Uint64Value(nil))
+
+	uiSlice := UintSlice([]uint{1})
+	uiValSlice := UintValueSlice(uiSlice)
+	assert.Equal(t, []uint{1}, uiValSlice)
+	assert.Nil(t, UintSlice(nil))
+	assert.Nil(t, UintValueSlice(nil))
+
+	ui8Slice := Uint8Slice([]uint8{1})
+	ui8ValSlice := Uint8ValueSlice(ui8Slice)
+	assert.Equal(t, []uint8{1}, ui8ValSlice)
+	assert.Nil(t, Uint8Slice(nil))
+	assert.Nil(t, Uint8ValueSlice(nil))
+
+	ui16Slice := Uint16Slice([]uint16{1})
+	ui16ValSlice := Uint16ValueSlice(ui16Slice)
+	assert.Equal(t, []uint16{1}, ui16ValSlice)
+	assert.Nil(t, Uint16Slice(nil))
+	assert.Nil(t, Uint16ValueSlice(nil))
+
+	ui32Slice := Uint32Slice([]uint32{1})
+	ui32ValSlice := Uint32ValueSlice(ui32Slice)
+	assert.Equal(t, []uint32{1}, ui32ValSlice)
+	assert.Nil(t, Uint32Slice(nil))
+	assert.Nil(t, Uint32ValueSlice(nil))
+
+	ui64Slice := Uint64Slice([]uint64{1})
+	ui64ValSlice := Uint64ValueSlice(ui64Slice)
+	assert.Equal(t, []uint64{1}, ui64ValSlice)
+	assert.Nil(t, Uint64Slice(nil))
+	assert.Nil(t, Uint64ValueSlice(nil))
+
+	tm := Time(time.Now())
+	tmVal := TimeValue(tm)
+	assert.Equal(t, time.Now(), tmVal)
+	assert.Equal(t, time.Now(), TimeValue(nil))
+}