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<title>Eric&#039;s Blog - Python 全局变量可以在局部作用域中使用 的评论</title>
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<description>例子：def spam():    print(egg)egg =42spam()print(egg)在def spam()自定义函数中，没有定义egg的值，在全局域中定义了一个egg=42 ，...</description>
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