In short, the code inside thecontrol flow statement(if name equals main) is executed only when the script is run from the command line or through anIDE. It is not executed when it is used as a module by another Python script. With this idiom, you can ensure that your Python script be...
Thus, when moduleonegets loaded, its__name__equals"one"instead of__main__.
使用附带默认值""" __name__是一个全局变量,在模块内部是用来标识模块的名称的"""if__name__=='__main__':importsysprint("studymodule_2.py is being run directly")print("计算机结果是{}".format(c))else:
if__name__=="__main__":importsysdefecho(text:str,repetitions:int=3)->str:"""Imitate a real-world echo."""echoes=[text[-i:].lower()foriinrange(repetitions,0,-1)]return"\n".join(echoes+["."])if__name__=="__main__":text=" ".join(sys.argv[1:])print(echo(text)) ...
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 min read Contents Understanding __name__ and "__main__"...
if __name__ == "__main__": import sys fib(int(sys.argv[1])) 您可以使该文件可用作脚本以及可导入模块,因为解析命令行的代码仅在模块作为“主”文件执行时才会运行: $ python fibo.py 50 1 1 2 3 5 8 13 21 34 如果导入模块,则不运行代码: >>> >>> import fibo >>> 这通常用于...
if [if] 如果 else [els] 否则 switch [switʃ] 判断语句 case [keis] 实例,情况 break [breik] 退出 continue [kən 'tinju] 跳出...继续 return [ri tə:n] 返回 default [di'fɔ:lt] 默认的 while [wail] 当……的时候 interpreter [ɪnˈtɜ:prɪtə(r)] 解释器 ...
import multiprocessing as mp if __name__ == '__main__': client = DeribitTradeApi() p1 = mp.Process(target=client.user_orders, args=()) p2 = mp.Process(target=client.user_trades, args=()) p1.start() print('subscribing to orders') p2.start() print('subscribing to trades') p1...
在这个任务中,我们需要实现一个去重字符串的功能,即输入一个字符串,输出去重后的字符串。 ### 2. 设计解决方案 接下来,我们需要设计一个解决方案来实现去重字符串的功能。下面是一个简单的解决方案的步骤表格: | 步骤 | 描述 | | --- | --- | | 1 | 将字符串转换为列表 | | 2 |...
public boolean equals(Object obj) { if( this==obj ) return true; if( obj!=null ) { if( obj instanceof Person ) { Person p = (Person)obj; if( this.name.equals( p.name ) && this.age == p.age ) { return true; } }