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python脚本文件执行方法

编写 py 脚本文件,在第一行加上解释器的路径。以下二者任选一:

#!/usr/bin/python3
#!/usr/bin/env python3

二者的区别在于: #!/usr/bin/python3是告诉操作系统在调用脚本时调用/usr/bin目录下的 python3 解释器。

#!/usr/bin/env python3是为了防止用户没有将 python3 安装在默认的 /usr/bin 路径里。当系统读到这一行时,首先会到 env 环境设置里查找 python3 的路径,再调用对应路径下的解释器程序完成操作。通常推荐第二种写法。

要注意 # 和 ! 还有 后面的路径之间不能有空格,否则会报错

增加可执行权限

chmod a+x test.py

执行

./test.py

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