无需CALL或START即可调用批处理脚本 [英] call batch script without CALL or START

问题描述

从没有CALL或START的批处理脚本调用批处理脚本是什么意思?

what does it mean when I call batch script from batch script without CALL or START?

示例.我有两个脚本a.bat和b.bat

example. I have two scripts a.bat and b.bat

a.bat :

echo I am A >> log
b.bat
echo end of A >> log

b.bat :

echo I am B >> log
sleep 1
echo end of B >> log

执行a.bat后，我会在日志中看到:

after execution of a.bat i see in the log:

I am A 
I am B 
end of B 

消息"A的结尾"在哪里?

Where is message "end of A" ?

推荐答案

消息a.bat的结尾永远不会到达，因为当您调用另一个没有start或call的批处理文件时，它将控制权转移到该批处理中，永远不会回来.

The end of message a.bat is never reached because when you call another batch file without start or call it transfers control over to that batch, and never returns.

如果希望它返回到调用批处理，则可以使用call，或者可以使用start，但这将启动cmd的另一个实例(除非使用/b开关).

If you wanted it to return to the calling batch, you would use call, or you could use start but that would start another instance of cmd (unless you use the /b switch).

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