China DOS Union

Very good, I'm studying, I'm a beginner

Very comprehensive and powerful, collected it, thank you

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Very helpful! Thanks~~

goooooooood

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You're welcome!

The `@` in front of `echo` is used to prevent the `echo` command itself from being displayed. If you use `&&`, it's a logical operator for command chaining. In this case, using `@echo` just suppresses the echoing of the `echo` command's own prompt. The translation of the code block remains as it is since it's already in English in terms of the code structure, just the explanation of the `@` usage is the interpretation. So the translated content for the code part is:

```
setlocal enableDelayedExpansion
pause
set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "!VAR!" == "after" @echo If you see this, it worked
)
```

Originally posted by rs369007 at 2008-12-8 14:44:
setlocal enableDelayedExpansion
pause
set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "!VAR!" == "after" @echo If you see this, it w ...

When using if judgment, you need to follow it with a command. And && is a command connector, not a command category, which will cause an error.

Hey. Most of it I can't understand.
Only used >, >>, |

Really thank you very much, LZ

It seems there might be some input error. If it's supposed to be a word like "xiaola" or something else, but as it is "xiiela", it's not a recognized standard English or Chinese term in a common context. Please check and provide the correct content.

Study study

Just looking for knowledge in this area everywhere. Exactly what is needed

:
① The label locator indicates that the subsequent string is a label, which can be the object of the goto command. For example, if a ":begin" label is defined in a batch file, the "goto begin" command can be used to jump to the position after the ":begin" label to execute batch commands.

Is there a clear ending symbol or mark for the label locator here? How to identify the end of the string after the label? Write an example to illustrate, thank you! !