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                [TOC] # 屬性 * `__name__`屬性可以做到,測試模塊的代碼只在測試情況下被運行,而在被導入時不會被執行 * `__name__`是python的一個內置屬性,記錄著一個字符串 * 如果是被其他文件導入的, `__name__`就是模塊名 * 如果是當前執行的程序,`__name__`是`__main__` # 使用 如果想測試,但是不想被導入時執行 ~~~ if __name__ == '__main__': print('測試代碼') ~~~ # 格式 很多python文件中都會看到以下格式的代碼 ~~~ # 導入模塊 # 定義全局變量 # 定義類 # 定義函數 # 根據__name__判斷是否執行下方代碼 if __name__ == '__main__': print('測試代碼') ~~~
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