package Util import ( "math/rand" ) var ( letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ") ) func RandomString(n int) string { var ( b []rune i int ) b = make([]rune, n) for i = range b { b[i] = letterRunes[rand.Intn(len(letterRunes))] } return string(b) }