- package main
- import(
- "fmt"
- "time"
- "math/rand"
- )
- const (
- KC_RAND_KIND_NUM = 0 // 纯数字
- KC_RAND_KIND_LOWER = 1 // 小写字母
- KC_RAND_KIND_UPPER = 2 // 大写字母
- KC_RAND_KIND_ALL = 3 // 数字、大小写字母
- )
- // 随机字符串
- func Krand(size int, kind int) []byte {
- ikind, kinds, result := kind, [][]int{[]int{10, 48}, []int{26, 97}, []int{26, 65}}, make([]byte, size)
- is_all := kind > 2 || kind < 0
- rand.Seed(time.Now().UnixNano())
- for i :=0; i < size; i++ {
- if is_all { // random ikind
- ikind = rand.Intn(3)
- }
- scope, base := kinds[ikind][0], kinds[ikind][1]
- result[i] = uint8(base+rand.Intn(scope))
- }
- return result
- }
- func main(){
- fmt.Println("num: " + string(Krand(16, KC_RAND_KIND_NUM)))
- fmt.Println("lower: " + string(Krand(16, KC_RAND_KIND_LOWER)))
- fmt.Println("upper: " + string(Krand(16, KC_RAND_KIND_UPPER)))
- fmt.Println("all: " + string(Krand(16, KC_RAND_KIND_ALL)))
- }
- //该片段来自于http://www.codesnippet.cn/detail/0709201513636.html
来源: http://www.codesnippet.cn/detail/0709201513636.html