如何传递值从子进程到父cmd.exe shell？ [英] how to pass values from child process to parent cmd.exe shell?

问题描述

我有一个Windows cmd.exe脚本运行一个子进程，需要收集孩子的输出设置三个变量。子进程做一些工作，并打印出三个值。

I have a windows cmd.exe script that runs a child process and needs to collect the output from the child to set three variables. The child process does some work, and prints out three values.

如何编码父项收集子项列印的值？

How do I code the parent to collect the values printed out by child ?

推荐答案

这是一个需要执行此操作的子进程，但是父脚本必须写为cmd.exe批处理文件。它可以接受的子进程集环境变量？父进程应该能够选择。

Is it acceptable that child process set environment variables? parent process should be able to pick that up.

child.bat

child.bat

set VAR1=123
set VAR2=321

parent.bat

parent.bat

echo %VAR1%
echo %VAR2%
call child.bat
echo %VAR1%
echo %VAR2%

$ b $ p

您可以使用子程序/脚本设置环境变量 - 有从它们设置环境变量的方法。

You can set environment variable from child program/script whatever language you are using - there are ways to set environment variables from them.

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