面试题集锦

一、

print(1 > 2 or 3 and 4 < 6)  
　　print(2 or 3 and 4 < 6) 2
　　执行结果为：True  2
　　分析：先计算比较运算符的结果，然后在计算逻辑运算符的结果

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二、

class Foo:
    def __init__(self):
        self.func()
    def func(self):
        print('in Foo')

class Son(Foo):
    def func(self):
        print('in Son')

s1 = Son()
#in Son

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三、

class Foo:
    Country = 'China'
    def func(self):
        print(self.Country)

class Son(Foo):
    Country = 'English'
    def func(self):     # 走这个方法
        print(self.Country)

s = Son()
s.func()

#English

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四、

class Foo:
    Country = 'China'
    def func(self):  # 走这个方法
        print(self.Country)

class Son(Foo):
    Country = 'English'

s = Son()
s.func()   # English

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五、

class Foo:
    Country = 'China'
    def func(self):
        print(self.Country)

class Son(Foo):pass

s = Son()
s.func()   # 'China'

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