diff --git a/util/gconv/gconv.go b/util/gconv/gconv.go
index 045176cdc..c34d0a569 100644
--- a/util/gconv/gconv.go
+++ b/util/gconv/gconv.go
@@ -8,11 +8,9 @@
 package gconv
 
 import (
-	"encoding/binary"
 	"encoding/json"
 	"fmt"
 	"github.com/gogf/gf/os/gtime"
-	"net"
 	"reflect"
 	"strconv"
 	"strings"
@@ -167,23 +165,6 @@ func Runes(i interface{}) []rune {
 	}
 	return []rune(String(i))
 }
-// convert ip to long, ex ip 106.8.36.164 to 1778918564
-func Ip2long(ipStr string) uint32 {
-	ip := net.ParseIP(ipStr)
-	if ip == nil {
-		return 0
-	}
-	ip = ip.To4()
-	return binary.BigEndian.Uint32(ip)
-}
-// convert long to ip string, ex int 1778918564 to ip 106.8.36.164
-func Long2ip(ipLong uint32) string {
-	ipByte := make([]byte, 4)
-	binary.BigEndian.PutUint32(ipByte, ipLong)
-	ip := net.IP(ipByte)
-	return ip.String()
-}
-
 
 // String converts <i> to string.
 // It's most common used converting function.
diff --git a/util/gvalid/gvalid_check.go b/util/gvalid/gvalid_check.go
index ef020d44d..0992ce8fc 100644
--- a/util/gvalid/gvalid_check.go
+++ b/util/gvalid/gvalid_check.go
@@ -7,11 +7,6 @@
 package gvalid
 
 import (
-	"regexp"
-	"strconv"
-	"strings"
-	"unicode/utf8"
-
 	"github.com/gogf/gf/container/gmap"
 	"github.com/gogf/gf/encoding/gjson"
 	"github.com/gogf/gf/net/gipv4"
@@ -19,6 +14,9 @@ import (
 	"github.com/gogf/gf/os/gtime"
 	"github.com/gogf/gf/text/gregex"
 	"github.com/gogf/gf/util/gconv"
+	"regexp"
+	"strconv"
+	"strings"
 )
 
 const (
@@ -79,9 +77,6 @@ var (
 		"length":               {},
 		"min-length":           {},
 		"max-length":           {},
-		"cn-length":               {},
-		"cn-min-length":           {},
-		"cn-max-length":           {},
 		"between":              {},
 		"min":                  {},
 		"max":                  {},
@@ -196,18 +191,6 @@ func Check(value interface{}, rules string, msgs interface{}, params ...interfac
 			} else {
 				match = true
 			}
-		// 中英文混合长度判断
-		case "cn-length":
-			fallthrough
-		case "cn-min-length":
-			fallthrough
-		case "cn-max-length":
-			if msg := checkCnLength(val, ruleKey, ruleVal, customMsgMap); msg != "" {
-				errorMsgs[ruleKey] = msg
-			} else {
-				match = true
-			}
-
 		// 大小范围
 		case "min":
 			fallthrough
@@ -537,72 +520,11 @@ func checkRequired(value, ruleKey, ruleVal string, params map[string]string) boo
 		return true
 	}
 }
-// 对中英文混合字段值长度进行检测
-func checkCnLength(value, ruleKey, ruleVal string, customMsgMap map[string]string) string {
-	msg := ""
-	strLen := utf8.RuneCountInString(value)
-	switch ruleKey {
-	// 长度范围
-	case "cn-length":
-		array := strings.Split(ruleVal, ",")
-		min := 0
-		max := 0
-		if len(array) > 0 {
-			if v, err := strconv.Atoi(strings.TrimSpace(array[0])); err == nil {
-				min = v
-			}
-		}
-		if len(array) > 1 {
-			if v, err := strconv.Atoi(strings.TrimSpace(array[1])); err == nil {
-				max = v
-			}
-		}
-		if strLen < min || strLen > max {
-			if v, ok := customMsgMap[ruleKey]; !ok {
-				msg = errorMsgMap.Get(ruleKey)
-			} else {
-				msg = v
-			}
-			msg = strings.Replace(msg, ":min", strconv.Itoa(min), -1)
-			msg = strings.Replace(msg, ":max", strconv.Itoa(max), -1)
-			return msg
-		}
-
-	// 最小长度
-	case "cn-min-length":
-		if min, err := strconv.Atoi(ruleVal); err == nil {
-			if strLen < min {
-				if v, ok := customMsgMap[ruleKey]; !ok {
-					msg = errorMsgMap.Get(ruleKey)
-				} else {
-					msg = v
-				}
-				msg = strings.Replace(msg, ":min", strconv.Itoa(min), -1)
-			}
-		} else {
-			msg = "校验参数[" + ruleVal + "]应当为整数类型"
-		}
-
-	// 最大长度
-	case "cn-max-length":
-		if max, err := strconv.Atoi(ruleVal); err == nil {
-			if strLen > max {
-				if v, ok := customMsgMap[ruleKey]; !ok {
-					msg = errorMsgMap.Get(ruleKey)
-				} else {
-					msg = v
-				}
-				msg = strings.Replace(msg, ":max", strconv.Itoa(max), -1)
-			}
-		} else {
-			msg = "校验参数[" + ruleVal + "]应当为整数类型"
-		}
-	}
-	return msg
-}
 // 对字段值长度进行检测
 func checkLength(value, ruleKey, ruleVal string, customMsgMap map[string]string) string {
 	msg := ""
+	runeArray := gconv.Runes(value)
+	valueLen := len(runeArray)
 	switch ruleKey {
 	// 长度范围
 	case "length":
@@ -619,7 +541,7 @@ func checkLength(value, ruleKey, ruleVal string, customMsgMap map[string]string)
 				max = v
 			}
 		}
-		if len(value) < min || len(value) > max {
+		if valueLen < min || valueLen > max {
 			if v, ok := customMsgMap[ruleKey]; !ok {
 				msg = errorMsgMap.Get(ruleKey)
 			} else {
@@ -633,7 +555,7 @@ func checkLength(value, ruleKey, ruleVal string, customMsgMap map[string]string)
 	// 最小长度
 	case "min-length":
 		if min, err := strconv.Atoi(ruleVal); err == nil {
-			if len(value) < min {
+			if valueLen < min {
 				if v, ok := customMsgMap[ruleKey]; !ok {
 					msg = errorMsgMap.Get(ruleKey)
 				} else {
@@ -648,7 +570,7 @@ func checkLength(value, ruleKey, ruleVal string, customMsgMap map[string]string)
 	// 最大长度
 	case "max-length":
 		if max, err := strconv.Atoi(ruleVal); err == nil {
-			if len(value) > max {
+			if valueLen > max {
 				if v, ok := customMsgMap[ruleKey]; !ok {
 					msg = errorMsgMap.Get(ruleKey)
 				} else {