Python随机生成字符串
class RandomUtil():'''随机数生成工具类'''
@staticmethod
def randomString(length):
'''生成长度为length的随机字符串'''
rstr = ''
while(len(rstr) < length):
#注意97表示字母a,char的参数为对应的ASCII码的值
tempt = chr(97+random.randint(0,25))
rstr = rstr.join(['',tempt])
return rstr
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