diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58849ce6..893b5769 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,6 @@
-## v1.0.33 / 2021-12-25
+## v1.0.34 / 2021-12-25
 
-- 优化 preg 方法
-- 优化 aes 方法
-- 增加 base64 方法
+- update utils
 
 ## v1.0.31 / 2021-12-24
 
diff --git a/library.go b/library.go
index 4bf2fc72..0e532fbd 100644
--- a/library.go
+++ b/library.go
@@ -1,5 +1,5 @@
 package go_library
 
 func Version() string {
-	return "v1.0.33"
+	return "v1.0.34"
 }
diff --git a/service/kashangwl/kashangwl.go b/service/kashangwl/kashangwl.go
index b1c3c1ab..1295f529 100644
--- a/service/kashangwl/kashangwl.go
+++ b/service/kashangwl/kashangwl.go
@@ -6,7 +6,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"github.com/bitly/go-simplejson"
-	params3 "github.com/dtapps/go-library/utils/params"
+	"github.com/dtapps/go-library/utils/goparams"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -60,7 +60,7 @@ func sign(params Parameter, customerKey string) string {
 	query := bytes.NewBufferString(customerKey)
 	for _, k := range keys {
 		query.WriteString(k)
-		query.WriteString(params3.GetParamsString(params[k]))
+		query.WriteString(goparams.GetParamsString(params[k]))
 	}
 	// MD5加密
 	h := md5.New()
diff --git a/service/movieapiv2/.gitignore b/service/movieapiv2/.gitignore
deleted file mode 100644
index b59718f5..00000000
--- a/service/movieapiv2/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-app_test.go
\ No newline at end of file
diff --git a/service/pinduoduo/.gitignore b/service/pinduoduo/.gitignore
deleted file mode 100644
index 0589bbb8..00000000
--- a/service/pinduoduo/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-pinduoduo_test.go
\ No newline at end of file
diff --git a/service/pinduoduo/pinduoduo.go b/service/pinduoduo/pinduoduo.go
index aeca96f4..cf4596dd 100644
--- a/service/pinduoduo/pinduoduo.go
+++ b/service/pinduoduo/pinduoduo.go
@@ -5,7 +5,7 @@ import (
 	"crypto/md5"
 	"encoding/hex"
 	"github.com/bitly/go-simplejson"
-	params3 "github.com/dtapps/go-library/utils/params"
+	"github.com/dtapps/go-library/utils/goparams"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -61,7 +61,7 @@ func sign(params Parameter, clientSecret string) string {
 	query := bytes.NewBufferString(clientSecret)
 	for _, k := range keys {
 		query.WriteString(k)
-		query.WriteString(params3.GetParamsString(params[k]))
+		query.WriteString(goparams.GetParamsString(params[k]))
 	}
 	query.WriteString(clientSecret)
 	// MD5加密
@@ -89,7 +89,7 @@ func (p Parameter) getRequestData() string {
 	args := url.Values{}
 	// 请求参数
 	for key, val := range p {
-		args.Set(key, params3.GetParamsString(val))
+		args.Set(key, goparams.GetParamsString(val))
 	}
 	return args.Encode()
 }
diff --git a/service/wechatpayapiv3/app.go b/service/wechatpayapiv3/app.go
index 991995f2..a869512a 100644
--- a/service/wechatpayapiv3/app.go
+++ b/service/wechatpayapiv3/app.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"github.com/dtapps/go-library/utils/request"
+	"github.com/dtapps/go-library/utils/gorequest"
 	"io/ioutil"
 	"net/http"
 )
@@ -49,7 +49,7 @@ func (app *App) request(url string, params map[string]interface{}, method string
 		return nil, result, err
 	}
 	req.Header.Add("Authorization", "WECHATPAY2-SHA256-RSA2048 "+authorization)
-	req.Header.Add("User-Agent", request.GetRandomUserAgent())
+	req.Header.Add("User-Agent", gorequest.GetRandomUserAgent())
 	req.Header.Add("Content-Type", "application/json")
 	req.Header.Add("Accept", "application/json")
 	req.Header.Add("Accept-Language", "zh-CN")
diff --git a/utils/decimal/decimal.go b/utils/godecimal/godecimal.go
similarity index 90%
rename from utils/decimal/decimal.go
rename to utils/godecimal/godecimal.go
index 5fd0f590..63451eea 100644
--- a/utils/decimal/decimal.go
+++ b/utils/godecimal/godecimal.go
@@ -1,4 +1,4 @@
-package decimal
+package godecimal
 
 import (
 	"fmt"
diff --git a/utils/decimal/decimal_test.go b/utils/godecimal/godecimal_test.go
similarity index 51%
rename from utils/decimal/decimal_test.go
rename to utils/godecimal/godecimal_test.go
index 23f81351..ad5cda15 100644
--- a/utils/decimal/decimal_test.go
+++ b/utils/godecimal/godecimal_test.go
@@ -1,10 +1,9 @@
-package decimal
+package godecimal
 
 import (
-	"fmt"
 	"testing"
 )
 
 func TestName(t *testing.T) {
-	fmt.Println(Decimal(2.3333))
+	t.Log(Decimal(2.3333))
 }
diff --git a/utils/files/files.go b/utils/gofiles/gofiles.go
similarity index 70%
rename from utils/files/files.go
rename to utils/gofiles/gofiles.go
index 877d2f08..b4e5332d 100644
--- a/utils/files/files.go
+++ b/utils/gofiles/gofiles.go
@@ -1,6 +1,7 @@
-package files
+package gofiles
 
 import (
+	"log"
 	"os"
 )
 
@@ -71,3 +72,30 @@ func CreateFiles(path string, perm int) (bool, error) {
 		return true, nil
 	}
 }
+
+// DirExist 判断目录是否存在,存在返回 true
+func DirExist(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+// CreateDir 创建目录
+func CreateDir(path string) error {
+	dirExist, err := DirExist(path)
+	if err != nil {
+		return err
+	}
+	if !dirExist {
+		err := os.Mkdir(path, os.ModePerm)
+		if err != nil {
+			log.Printf("创建[%s]目录失败: %s\n", path, err)
+		}
+	}
+	return err
+}
diff --git a/utils/header/header.go b/utils/goheader/goheader.go
similarity index 97%
rename from utils/header/header.go
rename to utils/goheader/goheader.go
index 9dba8720..a3a9dd6b 100644
--- a/utils/header/header.go
+++ b/utils/goheader/goheader.go
@@ -1,4 +1,4 @@
-package header
+package goheader
 
 import (
 	"encoding/json"
diff --git a/utils/gohttp/gohttp.go b/utils/gohttp/gohttp.go
index fe21cfab..3e417ede 100644
--- a/utils/gohttp/gohttp.go
+++ b/utils/gohttp/gohttp.go
@@ -5,13 +5,12 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"github.com/dtapps/go-library/utils/gorequest"
 	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strconv"
 	"strings"
-
-	"github.com/dtapps/go-library/utils/request"
 )
 
 type Response struct {
@@ -36,7 +35,7 @@ func Get(url string, params map[string]interface{}) (httpResponse Response, err
 		req.URL.RawQuery = q.Encode()
 	}
 	// 设置请求头
-	req.Header.Set("User-Agent", request.GetRandomUserAgent())
+	req.Header.Set("User-Agent", gorequest.GetRandomUserAgent())
 	// 发送请求
 	resp, err := client.Do(req)
 	if err != nil {
@@ -71,7 +70,7 @@ func PostForm(targetUrl string, params map[string]interface{}) (httpResponse Res
 	// 创建请求
 	req, _ := http.NewRequest(http.MethodPost, targetUrl, strings.NewReader(form.Encode()))
 	// 设置请求头
-	req.Header.Set("User-Agent", request.GetRandomUserAgent())
+	req.Header.Set("User-Agent", gorequest.GetRandomUserAgent())
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	// 发送请求
 	resp, err := client.Do(req)
@@ -98,7 +97,7 @@ func PostJson(targetUrl string, paramsStr []byte) (httpResponse Response, err er
 	// 创建请求
 	req, _ := http.NewRequest(http.MethodPost, targetUrl, bytes.NewBuffer(paramsStr))
 	// 设置请求头
-	req.Header.Set("User-Agent", request.GetRandomUserAgent())
+	req.Header.Set("User-Agent", gorequest.GetRandomUserAgent())
 	req.Header.Set("Content-Type", "application/json")
 	// 创建 http 客户端
 	client := &http.Client{}
diff --git a/utils/gohttp/gohttp_test.go b/utils/gohttp/gohttp_test.go
index 46e342f3..a8b6ce82 100644
--- a/utils/gohttp/gohttp_test.go
+++ b/utils/gohttp/gohttp_test.go
@@ -1,14 +1,13 @@
 package gohttp
 
 import (
-	"fmt"
 	"testing"
 )
 
 func TestName(t *testing.T) {
 	get, err := Get("https://api.dtapp.net/", nil)
+	t.Logf("%+v\n", get)
 	if err != nil {
 		return
 	}
-	fmt.Printf("%#v\n", get)
 }
diff --git a/utils/mail/mail.go b/utils/gomail/gomail.go
similarity index 98%
rename from utils/mail/mail.go
rename to utils/gomail/gomail.go
index b89f0943..83345504 100644
--- a/utils/mail/mail.go
+++ b/utils/gomail/gomail.go
@@ -1,4 +1,4 @@
-package mail
+package gomail
 
 import (
 	"fmt"
diff --git a/utils/params/params.go b/utils/goparams/goparams.go
similarity index 95%
rename from utils/params/params.go
rename to utils/goparams/goparams.go
index 72cc368b..1ed46245 100644
--- a/utils/params/params.go
+++ b/utils/goparams/goparams.go
@@ -1,8 +1,9 @@
-package params
+package goparams
 
 import (
 	"encoding/json"
 	"github.com/nilorg/sdk/convert"
+	"log"
 	"net/url"
 )
 
@@ -50,7 +51,7 @@ func GetParamsString(src interface{}) string {
 	}
 	data, err := json.Marshal(src)
 	if err != nil {
-		panic(err)
+		log.Fatal(err)
 	}
 	return string(data)
 }
diff --git a/utils/request/request.go b/utils/gorequest/gorequest.go
similarity index 99%
rename from utils/request/request.go
rename to utils/gorequest/gorequest.go
index 29fe348f..bb9946c7 100644
--- a/utils/request/request.go
+++ b/utils/gorequest/gorequest.go
@@ -1,4 +1,4 @@
-package request
+package gorequest
 
 import (
 	"errors"
diff --git a/utils/request/request_test.go b/utils/gorequest/gorequest_test.go
similarity index 55%
rename from utils/request/request_test.go
rename to utils/gorequest/gorequest_test.go
index 855a254c..0202896f 100644
--- a/utils/request/request_test.go
+++ b/utils/gorequest/gorequest_test.go
@@ -1,10 +1,9 @@
-package request
+package gorequest
 
 import (
-	"fmt"
 	"testing"
 )
 
 func TestExternalIp(t *testing.T) {
-	fmt.Println(ExternalIp())
+	t.Log(ExternalIp())
 }
diff --git a/utils/goround/goround.go b/utils/goround/goround.go
new file mode 100644
index 00000000..897d2bca
--- /dev/null
+++ b/utils/goround/goround.go
@@ -0,0 +1,13 @@
+package goround
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// FloatRound 截取小数位数
+func FloatRound(f float64, n int) float64 {
+	format := "%." + strconv.Itoa(n) + "f"
+	res, _ := strconv.ParseFloat(fmt.Sprintf(format, f), 64)
+	return res
+}
diff --git a/utils/rsa/rsa.go b/utils/gorsa/gorsa.go
similarity index 99%
rename from utils/rsa/rsa.go
rename to utils/gorsa/gorsa.go
index 891be13f..1bdd8d64 100644
--- a/utils/rsa/rsa.go
+++ b/utils/gorsa/gorsa.go
@@ -1,4 +1,4 @@
-package rsa
+package gorsa
 
 import (
 	"crypto/rand"
diff --git a/utils/url/url.go b/utils/gourl/gourl.go
similarity index 98%
rename from utils/url/url.go
rename to utils/gourl/gourl.go
index a099e7be..2c2d2cf7 100644
--- a/utils/url/url.go
+++ b/utils/gourl/gourl.go
@@ -1,4 +1,4 @@
-package url
+package gourl
 
 import (
 	"io"
diff --git a/utils/url/url_test.go b/utils/gourl/gourl_test.go
similarity index 93%
rename from utils/url/url_test.go
rename to utils/gourl/gourl_test.go
index a467041a..33e3e331 100644
--- a/utils/url/url_test.go
+++ b/utils/gourl/gourl_test.go
@@ -1,4 +1,4 @@
-package url
+package gourl
 
 import (
 	"log"
diff --git a/utils/phpjson/phpjson.go b/utils/phpjson/phpjson.go
new file mode 100644
index 00000000..16d8eafa
--- /dev/null
+++ b/utils/phpjson/phpjson.go
@@ -0,0 +1,50 @@
+package phpjson
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+func Encode(v interface{}) (string, error) {
+	bytes, err := json.Marshal(v)
+	if err != nil {
+		return "", err
+	}
+	return string(bytes), nil
+}
+
+func MarshalToString(msg interface{}) (string, error) {
+	j, e := json.Marshal(msg)
+	if e != nil {
+		return "", e
+	}
+	return string(j), nil
+}
+
+func Implode(list interface{}, seq string) string {
+	listValue := reflect.Indirect(reflect.ValueOf(list))
+	if listValue.Kind() != reflect.Slice {
+		return ""
+	}
+	count := listValue.Len()
+	listStr := make([]string, 0, count)
+	for i := 0; i < count; i++ {
+		v := listValue.Index(i)
+		if str, err := getValue(v); err == nil {
+			listStr = append(listStr, str)
+		}
+	}
+	return strings.Join(listStr, seq)
+}
+
+func getValue(value reflect.Value) (res string, err error) {
+	switch value.Kind() {
+	case reflect.Ptr:
+		res, err = getValue(value.Elem())
+	default:
+		res = fmt.Sprint(value.Interface())
+	}
+	return
+}