diff --git a/app/console/commands/monitoring.go b/app/console/commands/monitoring.go
index 41fd9125..cef36a0e 100644
--- a/app/console/commands/monitoring.go
+++ b/app/console/commands/monitoring.go
@@ -9,6 +9,7 @@ import (
 	"github.com/goravel/framework/contracts/console/command"
 	"github.com/goravel/framework/facades"
 	"github.com/goravel/framework/support/carbon"
+
 	"panel/app/models"
 	"panel/packages/helpers"
 )
diff --git a/app/console/kernel.go b/app/console/kernel.go
index 275f6dba..e96ee7f9 100644
--- a/app/console/kernel.go
+++ b/app/console/kernel.go
@@ -3,6 +3,7 @@ package console
 import (
 	"github.com/goravel/framework/contracts/console"
 	"github.com/goravel/framework/contracts/schedule"
+
 	"panel/app/console/commands"
 )
 
diff --git a/app/http/controllers/user_controller.go b/app/http/controllers/user_controller.go
index 6edfc4a4..fa84e1c0 100644
--- a/app/http/controllers/user_controller.go
+++ b/app/http/controllers/user_controller.go
@@ -3,8 +3,9 @@ package controllers
 import (
 	"github.com/goravel/framework/contracts/http"
 	"github.com/goravel/framework/facades"
-	models "panel/app/Models"
+
 	"panel/app/http/requests"
+	"panel/app/models"
 )
 
 type UserController struct {
@@ -88,7 +89,21 @@ func (r *UserController) Login(ctx http.Context) {
 }
 
 func (r *UserController) Info(ctx http.Context) {
+	user, ok := ctx.Value("user").(models.User)
+	if !ok {
+		ctx.Request().AbortWithStatusJson(http.StatusUnauthorized, http.Json{
+			"code":    401,
+			"message": "登录已过期",
+		})
+		return
+	}
+
 	ctx.Response().Success().Json(http.Json{
-		"Hello": "Goravel",
+		"code":    0,
+		"message": "获取用户信息成功",
+		"data": http.Json{
+			"username": user.Username,
+			"email":    user.Email,
+		},
 	})
 }
diff --git a/app/http/requests/login_request.go b/app/http/requests/login_request.go
index 4617d0f9..44c42ab4 100644
--- a/app/http/requests/login_request.go
+++ b/app/http/requests/login_request.go
@@ -8,6 +8,9 @@ import (
 type LoginRequest struct {
 	Username string `json:"username" form:"username"`
 	Password string `json:"password" form:"password"`
+
+	CaptchaID string `json:"captcha_id" form:"captcha_id"`
+	Captcha   string `json:"captcha" form:"captcha"`
 }
 
 func (r *LoginRequest) Authorize(ctx http.Context) error {
@@ -18,6 +21,7 @@ func (r *LoginRequest) Rules(ctx http.Context) map[string]string {
 	return map[string]string{
 		"login":    "required",
 		"password": "required|min_len:8",
+		"captcha":  "captcha:true",
 	}
 }
 
@@ -26,6 +30,7 @@ func (r *LoginRequest) Messages(ctx http.Context) map[string]string {
 		"login.required":    "登录名不能为空",
 		"password.required": "密码不能为空",
 		"password.min_len":  "密码长度不能小于 8 位",
+		"captcha.captcha":   "验证码错误",
 	}
 }
 
diff --git a/app/providers/validation_service_provider.go b/app/providers/validation_service_provider.go
index 583a29ec..20878e26 100644
--- a/app/providers/validation_service_provider.go
+++ b/app/providers/validation_service_provider.go
@@ -4,6 +4,8 @@ import (
 	"github.com/goravel/framework/contracts/foundation"
 	"github.com/goravel/framework/contracts/validation"
 	"github.com/goravel/framework/facades"
+
+	"panel/app/rules"
 )
 
 type ValidationServiceProvider struct {
@@ -20,5 +22,9 @@ func (receiver *ValidationServiceProvider) Boot(app foundation.Application) {
 }
 
 func (receiver *ValidationServiceProvider) rules() []validation.Rule {
-	return []validation.Rule{}
+	return []validation.Rule{
+		&rules.Exists{},
+		&rules.NotExists{},
+		&rules.Captcha{},
+	}
 }
diff --git a/app/rules/captcha.go b/app/rules/captcha.go
new file mode 100644
index 00000000..f8637ba5
--- /dev/null
+++ b/app/rules/captcha.go
@@ -0,0 +1,46 @@
+package rules
+
+import (
+	"strconv"
+
+	"github.com/goravel/framework/contracts/validation"
+
+	"panel/packages/captcha"
+)
+
+type Captcha struct {
+}
+
+// Signature The name of the rule.
+func (receiver *Captcha) Signature() string {
+	return "captcha"
+}
+
+// Passes Determine if the validation rule passes.
+func (receiver *Captcha) Passes(data validation.Data, val any, options ...any) bool {
+	captchaID, exist := data.Get("captcha_id")
+	if !exist {
+		return false
+	}
+
+	// 第一个参数（如果有），是否清除验证码，如 false
+	clear := true
+	var err error
+	if len(options) > 0 {
+		clear, err = strconv.ParseBool(options[0].(string))
+		if err != nil {
+			clear = true
+		}
+	}
+
+	if !captcha.NewCaptcha().VerifyCaptcha(captchaID.(string), val.(string), clear) {
+		return false
+	}
+
+	return true
+}
+
+// Message Get the validation error message.
+func (receiver *Captcha) Message() string {
+	return ""
+}
diff --git a/app/rules/exists.go b/app/rules/exists.go
new file mode 100644
index 00000000..e1e4e64b
--- /dev/null
+++ b/app/rules/exists.go
@@ -0,0 +1,54 @@
+package rules
+
+import (
+	"github.com/goravel/framework/contracts/validation"
+	"github.com/goravel/framework/facades"
+)
+
+type Exists struct {
+}
+
+// Signature The name of the rule.
+func (receiver *Exists) Signature() string {
+	return "exists"
+}
+
+// Passes Determine if the validation rule passes.
+func (receiver *Exists) Passes(_ validation.Data, val any, options ...any) bool {
+
+	// 第一个参数，表名称，如 categories
+	tableName := options[0].(string)
+	// 第二个参数，字段名称，如 id
+	fieldName := options[1].(string)
+	// 用户请求过来的数据
+	requestValue, ok := val.(string)
+	if !ok {
+		return false
+	}
+
+	// 判断是否为空
+	if len(requestValue) == 0 {
+		return false
+	}
+
+	// 判断是否存在
+	var count int64
+	query := facades.Orm().Query().Table(tableName).Where(fieldName, requestValue)
+	// 判断第三个参数及之后的参数是否存在
+	if len(options) > 2 {
+		for i := 2; i < len(options); i++ {
+			query = query.OrWhere(options[i].(string), requestValue)
+		}
+	}
+	err := query.Count(&count)
+	if err != nil {
+		return false
+	}
+
+	return count != 0
+}
+
+// Message Get the validation error message.
+func (receiver *Exists) Message() string {
+	return "记录不存在"
+}
diff --git a/app/rules/not_exists.go b/app/rules/not_exists.go
new file mode 100644
index 00000000..ad61fa6a
--- /dev/null
+++ b/app/rules/not_exists.go
@@ -0,0 +1,54 @@
+package rules
+
+import (
+	"github.com/goravel/framework/contracts/validation"
+	"github.com/goravel/framework/facades"
+)
+
+type NotExists struct {
+}
+
+// Signature The name of the rule.
+func (receiver *NotExists) Signature() string {
+	return "not_exists"
+}
+
+// Passes Determine if the validation rule passes.
+func (receiver *NotExists) Passes(_ validation.Data, val any, options ...any) bool {
+
+	// 第一个参数，表名称，如 categories
+	tableName := options[0].(string)
+	// 第二个参数，字段名称，如 id
+	fieldName := options[1].(string)
+	// 用户请求过来的数据
+	requestValue, ok := val.(string)
+	if !ok {
+		return false
+	}
+
+	// 判断是否为空
+	if len(requestValue) == 0 {
+		return false
+	}
+
+	// 判断是否存在
+	var count int64
+	query := facades.Orm().Query().Table(tableName).Where(fieldName, requestValue)
+	// 判断第三个参数及之后的参数是否存在
+	if len(options) > 2 {
+		for i := 2; i < len(options); i++ {
+			query = query.OrWhere(options[i].(string), requestValue)
+		}
+	}
+	err := query.Count(&count)
+	if err != nil {
+		return false
+	}
+
+	return count == 0
+}
+
+// Message Get the validation error message.
+func (receiver *NotExists) Message() string {
+	return "记录已存在"
+}
diff --git a/config/captcha.go b/config/captcha.go
new file mode 100644
index 00000000..43f0896e
--- /dev/null
+++ b/config/captcha.go
@@ -0,0 +1,34 @@
+package config
+
+import (
+	"github.com/goravel/framework/facades"
+)
+
+func init() {
+	config := facades.Config()
+	config.Add("captcha", map[string]any{
+		// 验证码图片高度
+		"height": 60,
+
+		// 验证码图片宽度
+		"width": 120,
+
+		// 验证码的长度
+		"length": 6,
+
+		// 数字的最大倾斜角度
+		"maxskew": 0.6,
+
+		// 图片背景里的混淆点数量
+		"dotcount": 40,
+
+		// 过期时间，单位是分钟
+		"expire_time": 5,
+
+		// debug 模式下的过期时间，方便本地开发调试
+		"debug_expire_time": 3600,
+
+		// 非 production 环境，使用此 key 可跳过验证，方便测试
+		"testing_key": "captcha_skip_test",
+	})
+}
diff --git a/go.mod b/go.mod
index 57e9c10f..df151155 100644
--- a/go.mod
+++ b/go.mod
@@ -39,6 +39,7 @@ require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gertd/go-pluralize v0.2.1 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/gin-contrib/static v0.0.1 // indirect
 	github.com/gin-gonic/gin v1.9.1 // indirect
@@ -58,6 +59,7 @@ require (
 	github.com/golang-module/carbon/v2 v2.2.3 // indirect
 	github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 // indirect
 	github.com/golang-sql/sqlexp v0.1.0 // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
@@ -79,6 +81,7 @@ require (
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/iancoleman/strcase v0.2.0 // indirect
 	github.com/imdario/mergo v0.3.13 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
@@ -101,6 +104,7 @@ require (
 	github.com/moby/term v0.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/mojocn/base64Captcha v1.3.5 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opencontainers/runc v1.1.5 // indirect
@@ -143,6 +147,7 @@ require (
 	go.uber.org/atomic v1.11.0 // indirect
 	golang.org/x/arch v0.3.0 // indirect
 	golang.org/x/crypto v0.10.0 // indirect
+	golang.org/x/image v0.0.0-20190802002840-cff245a6509b // indirect
 	golang.org/x/mod v0.10.0 // indirect
 	golang.org/x/net v0.11.0 // indirect
 	golang.org/x/oauth2 v0.7.0 // indirect
diff --git a/go.sum b/go.sum
index ed9b670a..1e2124e7 100644
--- a/go.sum
+++ b/go.sum
@@ -153,6 +153,8 @@ github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
+github.com/gertd/go-pluralize v0.2.1 h1:M3uASbVjMnTsPb0PNqg+E/24Vwigyo/tvyMTtAlLgiA=
+github.com/gertd/go-pluralize v0.2.1/go.mod h1:rbYaKDbsXxmRfr8uygAEKhOWsjyrrqrkHVpZvoOp8zk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
@@ -242,6 +244,8 @@ github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 h1:au07oEsX2xN0kt
 github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
 github.com/golang-sql/sqlexp v0.1.0 h1:ZCD6MBpcuOVfGVqsEmY5/4FtYiKz6tSyUv9LPEDei6A=
 github.com/golang-sql/sqlexp v0.1.0/go.mod h1:J4ad9Vo8ZCWQ2GMrC4UCQy1JpCbwU9m3EOqtpKwwwHI=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -362,6 +366,8 @@ github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
+github.com/iancoleman/strcase v0.2.0 h1:05I4QRnGpI0m37iZQRuskXh+w77mr6Z41lwQzuHLwW0=
+github.com/iancoleman/strcase v0.2.0/go.mod h1:iwCmte+B7n89clKwxIoIXy/HfoL7AsD47ZCWhYzw7ho=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
@@ -454,6 +460,8 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/modocache/gover v0.0.0-20171022184752-b58185e213c5/go.mod h1:caMODM3PzxT8aQXRPkAt8xlV/e7d7w8GM5g0fa5F0D8=
+github.com/mojocn/base64Captcha v1.3.5 h1:Qeilr7Ta6eDtG4S+tQuZ5+hO+QHbiGAJdi4PfoagaA0=
+github.com/mojocn/base64Captcha v1.3.5/go.mod h1:/tTTXn4WTpX9CfrmipqRytCpJ27Uw3G6I7NcP2WwcmY=
 github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
 github.com/montanaflynn/stats v0.7.0/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
 github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
@@ -665,6 +673,8 @@ golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EH
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
 golang.org/x/exp v0.0.0-20230315142452-642cacee5cc0 h1:pVgRXcIictcr+lBQIFeiwuwtDIs4eL21OuM9nyAADmo=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/image v0.0.0-20190501045829-6d32002ffd75/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/image v0.0.0-20190802002840-cff245a6509b h1:+qEpEAPhDZ1o0x3tHzZTQDArnOixOzGD9HUJfcg0mb4=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
diff --git a/packages/captcha/captcha.go b/packages/captcha/captcha.go
new file mode 100644
index 00000000..e0ae692a
--- /dev/null
+++ b/packages/captcha/captcha.go
@@ -0,0 +1,62 @@
+// Package captcha 处理图片验证码逻辑
+package captcha
+
+import (
+	"sync"
+
+	"github.com/goravel/framework/facades"
+	"github.com/mojocn/base64Captcha"
+)
+
+type Captcha struct {
+	Base64Captcha *base64Captcha.Captcha
+}
+
+// once 确保 internalCaptcha 对象只初始化一次
+var once sync.Once
+
+// internalCaptcha 内部使用的 Captcha 对象
+var internalCaptcha *Captcha
+
+// NewCaptcha 单例模式获取
+func NewCaptcha() *Captcha {
+	once.Do(func() {
+		// 初始化 Captcha 对象
+		internalCaptcha = &Captcha{}
+
+		// 使用 Cache facade 进行存储，并配置存储 Key 的前缀
+		store := CacheStore{
+			KeyPrefix: facades.Config().GetString("app.name") + ":captcha:",
+		}
+
+		// 配置 base64Captcha 驱动信息
+		driver := base64Captcha.NewDriverDigit(
+			facades.Config().GetInt("captcha.height"),         // 宽
+			facades.Config().GetInt("captcha.width"),          // 高
+			facades.Config().GetInt("captcha.length"),         // 长度
+			facades.Config().Get("captcha.maxskew").(float64), // 数字的最大倾斜角度
+			facades.Config().GetInt("captcha.dotcount"),       // 图片背景里的混淆点数量
+		)
+
+		// 实例化 base64Captcha 并赋值给内部使用的 internalCaptcha 对象
+		internalCaptcha.Base64Captcha = base64Captcha.NewCaptcha(driver, &store)
+	})
+
+	return internalCaptcha
+}
+
+// GenerateCaptcha 生成图片验证码
+func (c *Captcha) GenerateCaptcha() (id string, b64s string, err error) {
+	return c.Base64Captcha.Generate()
+}
+
+// VerifyCaptcha 验证验证码是否正确
+func (c *Captcha) VerifyCaptcha(id string, answer string, clear bool) (match bool) {
+
+	// 方便本地和 API 自动测试
+	if facades.Config().GetBool("app.debug") && id == facades.Config().GetString("captcha.testing_key") {
+		return true
+	}
+	// 这样方便用户多次提交，防止表单提交错误需要多次输入图片验证码
+	return c.Base64Captcha.Verify(id, answer, clear)
+}
diff --git a/packages/captcha/store_cache.go b/packages/captcha/store_cache.go
new file mode 100644
index 00000000..5c348089
--- /dev/null
+++ b/packages/captcha/store_cache.go
@@ -0,0 +1,45 @@
+package captcha
+
+import (
+	"time"
+
+	"github.com/goravel/framework/facades"
+)
+
+// CacheStore 实现 base64Captcha.Store interface
+type CacheStore struct {
+	KeyPrefix string
+}
+
+// Set 实现 base64Captcha.Store interface 的 Set 方法
+func (s *CacheStore) Set(key string, value string) error {
+
+	ExpireTime := time.Minute * time.Duration(facades.Config().GetInt("captcha.expire_time"))
+	// 方便本地开发调试
+	if facades.Config().GetBool("app.debug") {
+		ExpireTime = time.Minute * time.Duration(facades.Config().GetInt("captcha.debug_expire_time"))
+	}
+
+	err := facades.Cache().Put(s.KeyPrefix+key, value, ExpireTime)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Get 实现 base64Captcha.Store interface 的 Get 方法
+func (s *CacheStore) Get(key string, clear bool) string {
+	key = s.KeyPrefix + key
+	val := facades.Cache().Get(key, "").(string)
+	if clear {
+		facades.Cache().Forget(key)
+	}
+	return val
+}
+
+// Verify 实现 base64Captcha.Store interface 的 Verify 方法
+func (s *CacheStore) Verify(key, answer string, clear bool) bool {
+	v := s.Get(key, clear)
+	return v == answer
+}
diff --git a/packages/str/str.go b/packages/str/str.go
new file mode 100644
index 00000000..00b6f86e
--- /dev/null
+++ b/packages/str/str.go
@@ -0,0 +1,32 @@
+// Package str 字符串辅助方法
+package str
+
+import (
+	"github.com/gertd/go-pluralize"
+	"github.com/iancoleman/strcase"
+)
+
+// Plural 转为复数 user -> users
+func Plural(word string) string {
+	return pluralize.NewClient().Plural(word)
+}
+
+// Singular 转为单数 users -> user
+func Singular(word string) string {
+	return pluralize.NewClient().Singular(word)
+}
+
+// Snake 转为 snake_case，如 TopicComment -> topic_comment
+func Snake(s string) string {
+	return strcase.ToSnake(s)
+}
+
+// Camel 转为 CamelCase，如 topic_comment -> TopicComment
+func Camel(s string) string {
+	return strcase.ToCamel(s)
+}
+
+// LowerCamel 转为 lowerCamelCase，如 TopicComment -> topicComment
+func LowerCamel(s string) string {
+	return strcase.ToLowerCamel(s)
+}