模块化上传驱动，使用泛型优化工具库降低冗余

server/utility/charset/charset.go

@@ -9,41 +9,11 @@ import (
 	"crypto/rand"
 	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/text/gstr"
-	"github.com/gogf/gf/v2/util/gconv"
-	"hotgo/utility/convert"
 	r "math/rand"
 	"strings"
 	"time"
 )
 
-// SplitMemberIds 从截取字串符中读取用户ID
-func SplitMemberIds(str, pos string) (memberIds []int64) {
-	receiver := strings.Split(strings.TrimSpace(str), pos)
-	if len(receiver) == 0 {
-		return memberIds
-	}
-	if len(receiver) == 1 && strings.TrimSpace(receiver[0]) == "" {
-		return memberIds
-	}
-
-	for _, memberId := range receiver {
-		memberIds = append(memberIds, gconv.Int64(strings.TrimSpace(memberId)))
-	}
-	return convert.UniqueSliceInt64(memberIds)
-}
-
-// GetMapKeysByString 获取map的所有key，字串符类型
-func GetMapKeysByString(m map[string]string) []string {
-	// 数组默认长度为map长度,后面append时,不需要重新申请内存和拷贝,效率很高
-	j := 0
-	keys := make([]string, len(m))
-	for k := range m {
-		keys[j] = k
-		j++
-	}
-	return keys
-}
-
 // RandomCreateBytes 生成随机字串符
 func RandomCreateBytes(n int, alphabets ...byte) []byte {
 	if len(alphabets) == 0 {
@@ -51,13 +21,12 @@ func RandomCreateBytes(n int, alphabets ...byte) []byte {
 	}
 	var bytes = make([]byte, n)
 	var randBy bool
-	r.Seed(time.Now().UnixNano())
 	if num, err := rand.Read(bytes); num != n || err != nil {
 		randBy = true
 	}
 	for i, b := range bytes {
 		if randBy {
-			bytes[i] = alphabets[r.Intn(len(alphabets))]
+			bytes[i] = alphabets[r.New(r.NewSource(time.Now().UnixNano())).Intn(len(alphabets))]
 		} else {
 			bytes[i] = alphabets[b%byte(len(alphabets))]
 		}