f = open("1.txt", "r", encoding="utf-8")f_new = open("2.txt", "w", encoding="utf-8")find_str = "wangzai"replace_str = "doubi"for line in f: if find_str in line: line = line.replace(find_str, replace_str) f_new = write(line)f.close()f_new.close()os.remove("config.txt")os.rename("config1.txt", "config.txt")
