Python如何随机生成一个字符串？

import stringimport randomlength = 8# 字母大写随机字符串random_str1 = ''.join(random.choices(string.ascii_uppercase + string.digits, k=length))print(random_str1)# 字母大小写混合随机字符串random_str = ''.join(random.sample(string.ascii_letters + string.digits, length))print(random_str)# 生成随机数字random_int = ''.join(random.sample(string.digits, 6))print(random_int)# 给定一个字符串生成随机字符串string1 = "abcdefghijklmnopqrstuvwxyz"print(random.choice(string1))