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类的处理。。 #80

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liujuanjuan1984 opened this issue Nov 11, 2019 · 0 comments

Owner

liujuanjuan1984 commented Nov 11, 2019 •

edited

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What gets printed?

class NumFactory:
    def __init__(self, n):
        self.val = n
    def timesTwo(self):
        self.val *= 2
    def plusTwo(self):
        self.val += 2

f = NumFactory(2)
for m in dir(f):
    mthd = getattr(f,m)
    if callable(mthd):
        mthd()

print(f.val)

2
4
6
8
An exception is thrown

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