import random
import string
def GenString(length):
# return ''.join(random.sample(chars, 15)) # 得出的结果中字符不会有重复的
return ''.join([random.choice(string.ascii_letters) for i in range(length)])import random
import string
def GenString(length):
# return ''.join(random.sample(chars, 15)) # 得出的结果中字符不会有重复的
return ''.join([random.choice(string.ascii_letters) for i in range(length)])