windows 捕获批处理文件中的错误 (7-zip)
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Catch an error inside a batch file (7-zip)
提问by GG.
I have a batch file in which I execute the following line to list the contents of an archive:
我有一个批处理文件，我在其中执行以下行以列出存档的内容：
"\Program Files-Zipz.exe" l "\Backup Google Docs.7z"
The archive is intentionally corrupted.
存档被故意损坏。
cmd.exe displays this:
cmd.exe 显示：
How can I catch this error in my code?
如何在我的代码中捕获此错误？
回答by Benoit
Any program's exit code is stored in the %ERRORLEVEL%variable in a batch script.
任何程序的退出代码都存储在%ERRORLEVEL%批处理脚本中的变量中。
From the 7-zip manual:
来自 7-zip 手册：
7-Zip returns the following exit codes:
Code Meaning
0 No error
1 Warning (Non fatal error(s)). For example, one or more files were locked by some other application, so they were not compressed.
2 Fatal error
7 Command line error
8 Not enough memory for operation
255 User stopped the process
So: you can do:
所以：你可以这样做：
"\Program Files-Zipz.exe" l "\Backup Google Docs.7z"
if errorlevel 255 goto:user_stopped_the_process
if errorlevel 8 goto:not_enough_memory
if errorlevel 7 goto:command_line_error
if errorlevel 2 goto:fatal_error
if errorlevel 1 goto:ok_warnings
Caution, if errorlevel Nchecks that %ERRORLEVEL%is greater or equal than N, therefore you should put them in descending order.
注意，if errorlevel N检查%ERRORLEVEL%大于或等于 N，因此您应该将它们按降序排列。
回答by Josh
Check if the ERRORLEVEL is set to 1 just after the call to 7z.exe and react appropriately. The ERRORLEVEL is the exit code from the last program that was run. An exit code of 1 or more indicates an error while zero indicates success. The IF ERRORLEVEL command checks if the exit is greater than or equal to the argument so IF ERRORLEVEL checks for an error level of one or more.
在调用 7z.exe 之后检查 ERRORLEVEL 是否设置为 1 并做出适当的反应。ERRORLEVEL 是最后运行的程序的退出代码。1 或更多的退出代码表示错误，而零表示成功。IF ERRORLEVEL 命令检查出口是否大于或等于参数，因此 IF ERRORLEVEL 检查错误级别是否为 1 或更多。
Here is an example:
下面是一个例子：
"\Program Files-Zipz.exe" l "\Backup Google Docs.7z" > nul
IF ERRORLEVEL 1 goto ziperror
@echo 7-Zip worked
goto :eof
:ziperror
@echo 7-Zip failed
goto :eof
