如题要完成以上要求,我们大概的流程就是:
打开文件–读取内容–判断是否存在–退出/追加
正题来了:
with open('test.txt', 'a+') as f:
f.seek(0)
lines = f.readlines()
if "python大法好" in lines:
pass
else:
f.write('\npython大法好')
正题来了:
with open('test.txt', 'a+') as f:
f.seek(0)
lines = f.readlines()
if "python大法好" in lines:
pass
else:
f.write('\npython大法好')