Function Krand

utils/krand.go:16–29

随机字符串

(size int, kind int)

// 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)
	isAll := kind > KC_RAND_KIND_UPPER || kind < KC_RAND_KIND_NUM
	rand.Seed(time.Now().UnixNano())
	for i := 0; i < size; i++ {
		if isAll { // random ikind
			ikind = rand.Intn(3)
		}
		scope, base := kinds[ikind][0], kinds[ikind][1]
		result[i] = uint8(base + rand.Intn(scope))
	}

	return result
}