为什么这个bat文件没有返回到调用bat文件？

Question

K:\bin>type get_resolution.bat  
i_view.bat "%1" /info=info.txt  
echo after get_resolution  
type info.txt | find "Resolution"  

K:\bin>type i_view.bat  
echo %*  
echo %errorlevel%  
echo after i_view  

K:\bin>get_resolution.bat input.jpg  

K:\bin>i_view.bat "input.jpg" /info=info.txt  

K:\bin>echo "input.jpg" /info=info.txt  
"input.jpg" /info=info.txt  

K:\bin>echo 0  
0  

K:\bin>echo after i_view  
after i_view  

K:\bin>  

为什么没有“get_resolution 之后”？

Answer 1

使用call命令。如果不使用此命令，批处理文件将“替换”当前的批处理文件。

在您的脚本中，您将放置call i_view.bat "%1" /info=info.txt.

cmd.exe /k是等价的。

这是来自 的帮助文本的一部分call /?。

Calls one batch program from another.

CALL [drive:][path]filename [batch-parameters]

  batch-parameters   Specifies any command-line information required by the
                     batch program.

If Command Extensions are enabled CALL changes as follows:

CALL command now accepts labels as the target of the CALL.  The syntax
is:

    CALL :label arguments

A new batch file context is created with the specified arguments and
control is passed to the statement after the label specified.  You must
"exit" twice by reaching the end of the batch script file twice.  The
first time you read the end, control will return to just after the CALL
statement.  The second time will exit the batch script.  Type GOTO /?
for a description of the GOTO :EOF extension that will allow you to
"return" from a batch script.