from random import randint def rancre(): mi="" for i in range(8): u=randint(0,62) if u>=10: if 90<(u+55)<97: mi+=chr(u+62) else: mi+=chr(u+55) print("{} ".format(u+55),end="") else: mi+='%d'%u return mi def main(): for i in range(1,11): print("生成的第{}个密码是:{}".format(i,rancre())) main()''' 这段代码在python里表示什么意思