打印出在文件test1中存在而test2中不存在的用户BJ$cattest1shizhenningzhangsanlisiyanjunBJ$cattest2zhangsanlisiyanjunBJ$catdiff.py#!/usr/bin/pythonwithopen('/Users/momo/test1','r')asx:list1=x.readlines()withopen('/Users/m
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