如何从cmd提示符打开时将变量输入到python脚本？

I am wondering how would one get variables inputted in a python script while opening from cmd prompt? I know using c one would do something like:

我想知道如何在从cmd提示符打开时从python脚本中输入变量？我知道使用c会做类似的事情：

int main( int argc, char **argv ) {
    int input1 = argv[ 0 ]
    int input2 = argv[ 1 ]

.....

}

how can I achieve the same kind of result in python?

如何在python中实现同样的结果？

6 个解决方案

#1

import sys

def main():
   input1 = sys.argv[1]
   input2 = sys.argv[2]
...

if __name__ == "__main__":
   main()

#2

Command Line Arguments In Python for serious command line argument handling.

命令行参数在Python中用于严格的命令行参数处理。

use sys.argv for simple access:

使用sys.argv进行简单访问：

http://www.faqs.org/docs/diveintopython/kgp_commandline.html

http://www.faqs.org/docs/diveintopython/kgp_commandline.html

#3

The arguments are in sys.argv, the first one sys.argv[0] is the script name.

参数在sys.argv中，第一个sys.argv [0]是脚本名称。

For more complicated argument parsing you should use argparse (for python >= 2.7). Previous modules for that purpose were getopts and optparse.

对于更复杂的参数解析，您应该使用argparse（对于python> = 2.7）。以前用于此目的的模块是getopts和optparse。

#4

Check these links

检查这些链接

http://www.faqs.org/docs/diveintopython/kgp_commandline.html

http://www.faqs.org/docs/diveintopython/kgp_commandline.html

Command Line Arguments In Python

Python中的命令行参数

#5

There are two options.

有两种选择。

1. import sys.argv and use that.
2. import sys.argv并使用它。
3. Use getopts
4. 使用getopts

See also: Dive into Python and PMotW

另请参阅：深入Python和PMotW

#6

it is also useful to determine option specific variables

确定选项特定变量也很有用

''' \
USAGE:  python script.py -i1 input1 -i2 input2
    -i1 input1 : input1 variable
    -i2 input2 : input2 variable
'''

import sys 
...

in_arr = sys.argv
if '-i1' not in in_arr  or '-i2' not in in_arr:
    print (__doc__)
    raise NameError('error: input options are not provided')
else:
    inpu1 = in_arr[in_arr.index('-i1') + 1]
    inpu2 = in_arr[in_arr.index('-i2') + 1]
...

# python script.py -i1 Input1 -i2 Input2