go.mod

@@ -1,3 +1,3 @@
 module git.apinb.com/bsm-sdk/engine
 
-go 1.22
+go 1.21

utils/convert.go

@@ -2,12 +2,13 @@ package utils
 
 import (
 	"math"
+	"reflect"
 	"strconv"
 	"strings"
+	"unsafe"
 )
 
 // 字符串转Int
-//
 //    intStr：数字的字符串
 func String2Int(intStr string) (intNum int) {
 	intNum, _ = strconv.Atoi(intStr)
@@ -15,7 +16,6 @@ func String2Int(intStr string) (intNum int) {
 }
 
 // 字符串转Int64
-//
 //    intStr：数字的字符串
 func String2Int64(intStr string) (int64Num int64) {
 	intNum, _ := strconv.Atoi(intStr)
@@ -24,7 +24,6 @@ func String2Int64(intStr string) (int64Num int64) {
 }
 
 // 字符串转Float64
-//
 //    floatStr：小数点数字的字符串
 func String2Float64(floatStr string) (floatNum float64) {
 	floatNum, _ = strconv.ParseFloat(floatStr, 64)
@@ -32,7 +31,6 @@ func String2Float64(floatStr string) (floatNum float64) {
 }
 
 // 字符串转Float32
-//
 //    floatStr：小数点数字的字符串
 func String2Float32(floatStr string) (floatNum float32) {
 	floatNum64, _ := strconv.ParseFloat(floatStr, 32)
@@ -41,7 +39,6 @@ func String2Float32(floatStr string) (floatNum float32) {
 }
 
 // Int转字符串
-//
 //    intNum：数字字符串
 func Int2String(intNum int) (intStr string) {
 	intStr = strconv.Itoa(intNum)
@@ -49,7 +46,6 @@ func Int2String(intNum int) (intStr string) {
 }
 
 // Int64转字符串
-//
 //    intNum：数字字符串
 func Int642String(intNum int64) (int64Str string) {
 	//10, 代表10进制
@@ -58,7 +54,6 @@ func Int642String(intNum int64) (int64Str string) {
 }
 
 // Float64转字符串
-//
 //    floatNum：float64数字
 //    prec：精度位数（不传则默认float数字精度）
 func Float64ToString(floatNum float64, prec ...int) (floatStr string) {
@@ -71,7 +66,6 @@ func Float64ToString(floatNum float64, prec ...int) (floatStr string) {
 }
 
 // Float32转字符串
-//
 //    floatNum：float32数字
 //    prec：精度位数（不传则默认float数字精度）
 func Float32ToString(floatNum float32, prec ...int) (floatStr string) {
@@ -96,6 +90,15 @@ func BinaryToDecimal(bit string) (num int) {
 	return
 }
 
+// BytesToString 0 拷贝转换 slice byte 为 string
+func BytesToString(b []byte) (s string) {
+	_bptr := (*reflect.SliceHeader)(unsafe.Pointer(&b))
+	_sptr := (*reflect.StringHeader)(unsafe.Pointer(&s))
+	_sptr.Data = _bptr.Data
+	_sptr.Len = _bptr.Len
+	return s
+}
+
 // interface to string
 func AnyToString(in any) (s string) {
 	if in == nil {

utils/random.go

@@ -1,49 +1,42 @@
 package utils
 
 import (
-	"math/rand/v2"
+	"math/rand"
+	"time"
 )
 
-// 随机生成字符串
+//随机生成字符串
 func RandomString(l int) string {
 	str := "0123456789AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"
 	bytes := []byte(str)
 	var result []byte = make([]byte, 0, l)
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	for i := 0; i < l; i++ {
-		result = append(result, bytes[rand.IntN(len(bytes))])
+		result = append(result, bytes[r.Intn(len(bytes))])
 	}
-	return string(result)
+	return BytesToString(result)
 }
 
-// 随机生成纯字符串
+//随机生成纯字符串
 func RandomPureString(l int) string {
 	str := "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"
 	bytes := []byte(str)
 	var result []byte = make([]byte, 0, l)
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	for i := 0; i < l; i++ {
-		result = append(result, bytes[rand.IntN(len(bytes))])
+		result = append(result, bytes[r.Intn(len(bytes))])
 	}
-	return string(result)
+	return BytesToString(result)
 }
 
-// 随机生成纯大写字符串
-func RandomPureUpString(l int) string {
-	str := "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	bytes := []byte(str)
-	var result []byte = make([]byte, 0, l)
-	for i := 0; i < l; i++ {
-		result = append(result, bytes[rand.IntN(len(bytes))])
-	}
-	return string(result)
-}
-
-// 随机生成数字字符串
+//随机生成数字字符串
 func RandomNumber(l int) string {
 	str := "0123456789"
 	bytes := []byte(str)
 	var result []byte
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	for i := 0; i < l; i++ {
-		result = append(result, bytes[rand.IntN(len(bytes))])
+		result = append(result, bytes[r.Intn(len(bytes))])
 	}
-	return string(result)
+	return BytesToString(result)
 }