生成指定长度的英数字随机字符串
import ( "math/rand" "time" ) func generateString(size int) string { kinds, result := [][]int{[]int{10, 48}, []int{26, 97}, []int{26, 65}}, make([]byte, size) ikind := rand.Intn(3) rand.Seed(time.Now().UnixNano()) for i := 0; i < size; i++ { ikind = rand.Intn(3) scope, base := kinds[ikind][0], ki...