China DOS Union

I'm a new arrival, please take care, hehe, just groping...

@echo off
fc 1.txt 2.txt>3.txt
setlocal enabledelayedexpansion
for /f %%a in (3.txt) do set file1=%%a !file1!
if %file%==""
(
goto end
)
else
(
copy test.xls e:\备份.xls
)
:end

[ Last edited by uemuem on 2006-10-14 at 01:17 ]

for /f "tokens=*" %%a in (3.txt) do copy %%a e:\备份.xls

Is this enough? Why make it so complicated?

Does batch processing have if else? I think this one looks like the language of PASAL

if %file%=="" is a syntax format error. The correct one should be if ""%file%""=="" Pay attention to adding quotes.

If the IF command is mastered correctly, it can be very useful.

Actually, I still don't quite understand. Can you explain it in more detail?

I still get a syntax error like this:

@echo off
setlocal enabledelayedexpansion
for /f %%a in (1.txt) do set file1=%%a !file1!
for /f %%a in (2.txt) do set file2=%%a !file2!
if "%file1%"=="%file2%"(
goto end
)else(
copy test.xls e:\备份.xls
)
:end

If there is still a syntax error, there are probably two places where the problem occurs:

1. The format of the else part is incorrect. The correct format should be if condition (command1) else (command2). In the top floor, the else is not on the same line as the if; in the 7th floor, the parentheses are connected with else; there is also a problem of writing parentheses and statements together in if "%file1%"=="%file2%"(;
2. The sentence if "%file1%"=="%file2%" may also have a problem. Because the content extracted by your %file1% and %file2% are both the content in the file. If there are sensitive characters under CMD in the file content, this sentence will have an error.

Originally posted by namejm at 2006-10-14 01:14:
　　if %file%=="" is a syntax format error. The correct one should be if ""%file%"=="" . Please note to add quotes.

if %file%=="" is not a syntax format error. If the value of variable file is "", the condition is established.
The mistake is (not adding












Last edited by qwe1234567 on 2006-10-16 at 22:37 ]