再请教一个 Python if 语句的写法

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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

print

equal

Must

2 replies • 2018-04-26 16:41:11 +08:00

1

pktangyue

Apr 26, 2018

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()

2

xmadi

Apr 26, 2018 via iPhone

。。。。这个和语法没有关系了纯粹是逻辑归纳能力不行