新手求教怎么修改函数里的判断 - V2EX
V2EX = way to explore
V2EX 是一个关于分享和探索的地方
现在注册
已注册用户请  登录
推荐学习书目
Learn Python the Hard Way
Python Sites
PyPI - Python Package Index
http://diveintopython.org/toc/index.html
Pocoo
值得关注的项目
PyPy
Celery
Jinja2
Read the Docs
gevent
pyenv
virtualenv
Stackless Python
Beautiful Soup
结巴中文分词
Green Unicorn
Sentry
Shovel
Pyflakes
pytest
Python 编程
pep8 Checker
Styles
PEP 8
Google Python Style Guide
Code Style from The Hitchhiker's Guide
ThunderEX
V2EX    Python

新手求教怎么修改函数里的判断

  •  
  •   ThunderEX 2012-08-15 08:53:25 +08:00 3373 次点击
    这是一个创建于 4807 天前的主题,其中的信息可能已经有所发展或是发生改变。
    大家早上好,问题是这样的:
    修改前是三个函数:
    funA()
    funB()
    funC()
    其中
    def funC():
    ...#若干嵌套
    if X:
    cry_out
    if Y:
    do_sth
    现在想要改成:funA、funB、funC一路跑下来,第一次遇到if X为True的时候不执行cry_out,而是倒回去把funA、funB、funC再跑一遍,再次遇到if X为True再cry_out,当然if X为False的行为不变。
    我有很多笨办法比如设flag之类但自己感觉不好,所以想求教一下各位高手怎么改比较漂亮?
    3 条回复    1970-01-01 08:00:00 +08:00
    lilydjwg
        1
    lilydjwg  
       2012-08-15 09:08:39 +08:00   1
    这样?
    rerun = False
    while True:
    funA()
    funB()
    if not funC(rerun):
    break

    def funC(rerun):
    #...
    if X and not rerun:
    return True
    if X:
    cry_out
    lilydjwg
        2
    lilydjwg  
       2012-08-15 09:09:37 +08:00
    ,忘记置位 rerun 了……
    另外,缩进没了怎么办?
    ThunderEX
        3
    ThunderEX  
    OP
       2012-08-15 10:44:09 +08:00
    @lilydjwg 我差不多也是这样想的,就是觉得既改动definition又改动reference不太雅观。还是谢谢~
    关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     1464 人在线   最高记录 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 22ms UTC 16:45 PVG 00:45 LAX 09:45 JFK 12:45
    Do have faith in what you're doing.
    ubao snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86