67 lines
942 B
Markdown
67 lines
942 B
Markdown
## 面试指南
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### 基础知识
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1. 下面的代码会输出什么。
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```Python
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list1 = [1, 2, 3, 4]
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list2 = [i for i in list1 if i > 2]
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print(list2)
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list3 = [i for i in list1 if i % 2]
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print(list3)
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dict1 = {x: x ** 2 for x in (2, 4, 6)}
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print(dict1)
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dict2 = {x: f'item{x ** 2}' for x in (2, 4, 6)}
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print(dict2)
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set1 = {x for x in 'hello world' if x not in 'abcdefg'}
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print(len(set1))
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```
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2. 下面的代码会输出什么。
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```Python
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num = 100
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def foo():
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num = 200
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def bar():
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print(num)
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bar()
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foo()
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bar()
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```
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3. 如何修改下面的Python代码，才能够输出“foo in father”？
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```Python
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class Father(object):
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def foo(self):
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print('foo in father.')
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class Son(object):
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def foo(self):
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print('foo in son.')
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obj = Son()
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obj.foo()
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```
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4. |