# Python module to executeimportfile_twoprint("File one __name__ is set to: {}".format(__name__))deffunction_one():print("Function one is executed")deffunction_two():print("Function two is executed")if__name__ =="__main__":print("File one executed when ran directly")else:print...
当打开一个Python文件时,通常是.py作为扩展名,我们通常会在代码的最后面看到If __name__ == “__main__”:这条语句,这条语句的主要作用就是当该文件直接被使用时,就会__name__就等于__main__,当作为模块被调用时,__name__就不等于__main__了,这样我们就可以在模块中添加自己的打印调试信息。首先,我们...
以下是一个简单的例子,说明了if __name__ == "__main__":的用法: # 文件名:example.pydefsome_function():print("This is some function.")# 如果脚本被直接执行,而不是被导入作为模块if__name__ =="__main__":print("This is the main part of the script.") some_function() 如果你直接运行...
http://pyfaq.infogami.com/tutor-what-is-if-name-main-for 代码语言:javascript 代码运行次数:0 运行 Theif __name__ == "__main__": ...trick exists in Python so that our Python files can act as either reusable modules, or as standalone programs. As a toy example, let's say that ...
if __name__ == '__main__':的作用 一个python文件通常有两种使用方法,1. 是作为脚本直接执行,2. 是 import 到其他的 python 脚本中被调用(模块重用)执行。 if __name__ == 'main': 的作用就是控制这两种情况执行代码的过程。 在if __name__ == 'main': 下的代码只有在第1种情况下(即.py文...
在Python程序中，你会经常看到__name__，例如：if__name__=='__main__':main()请注意，__name...
if __name__ == "__main__": main() _name_代表当前模块的名字 当我们再次运行“python area.py”时 对于const.py来说 _name_不再是_main_ 因此其中的main()不再被执行 最终得到我们想要的输出 round area: 12.56 以上示例代码及注释部分取自博文(非常好的总结文章,还详细解释了_name_): ...
In this example, you define a function,echo(), that mimics a real-world echo by gradually printing fewer and fewer of the final letters of the input text. Below that, in lines 6 to 8, you use theif __name__ == "__main__"idiom. This code starts with the conditional statementif ...
a=1defdisplay():print("hello ithomer")global aprint("a = %d"%a)a=2print("a = %d"%a)if__name__=='__main__':display() 运行结果: hello ithomer a = 1 a = 2 方法1:在 Pydev Package Explorer 中,双击 example.py,选择 菜单栏 -> Run -> Run As -> Python Run ...
The if __name__ == "__main__" block in Python allows you to define code that will only run when the file is executed directly as a script, but not when it's imported as a module into another script. Aug 12, 2024·8 minread ...