day3

程序1: 實現簡單的shell sed替換功能 import os,sys old = sys.argv[1] new = sys.argv[2] file_name = sys.argv[3] tmp_file ="tmpfile" open(tmp_file,"w") file1 = open(file_name,"r") file2 = open(tmp_file,"r+") for lin

>>阅读原文<<