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41 lines
772 B

package util
import (
"math/rand"
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"os"
"time"
)
// RandomString
//
// @Description: 随机字符串
// @param length
// @return string
func RandomString(length int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
bytes := []byte(str)
var result []byte
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < length; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
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// PathExists
//
// @Description: 判断路径是否存在
// @param path
// @return bool
// @return error
func PathExists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { //文件或者目录存在
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}