再请教一个 Python if 语句的写法

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

这是一个创建于 2395 天前的主题，其中的信息可能已经有所发展或是发生改变。

if A1:
    if A2 == X2:
        if B1:
            if B2 == Y2:
                do_something()
            else:
                print 'B2 must equal to Y2'
        else:
            do_something()
    else:
         print 'A2 must equal to X2'
elif B1:
    if B2 == Y2:
        do_something()
    else:
        print 'B2 must equal to Y2'
else:
    print 'Choose at least one between A1 and B1'

else

equal

Must

2 条回复 • 2018-04-26 16:41:11 +08:00

pktangyue

2018-04-26 16:36:22 +08:00

if not A1 and not B1:
print 'Choose at least one between A1 and B1'
return
if A1 and A2 != X2:
print 'A2 must equal to X2'
return
if B1 and B2 != Y2:
print 'B2 must equal to Y2'
return

do_something()

xmadi

2018-04-26 16:41:11 +08:00 via iPhone

。。。。这个和语法没有关系了纯粹是逻辑归纳能力不行