hotime/vendor/github.com/go-pay/gopay/pkg/util/random.go

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2022-05-24 05:49:25 +00:00
package util
import (
"math/rand"
"time"
)
//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[r.Intn(len(bytes))])
}
return BytesToString(result)
}
//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[r.Intn(len(bytes))])
}
return BytesToString(result)
}
//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[r.Intn(len(bytes))])
}
return BytesToString(result)
}