[文本处理] 【已解决】批处理if命令判断的问题

wlf2r

批处理

for /f "usebackq" %%a in ('D:\a\a.txta') do set size2= %%~za
if %size1% equ 0 ( 
echo. size:0
)
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if %size1% == "" ( 
echo. size:0
)
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因为文件不存在拿不到大小  怎么用if来判断,上面2种都不行

ShowCode

回复 1# wlf2r

@echo off
set "TestFile=C:\Test\1.txt"
set "FileSize=0"
if exist "%TestFile%" (
    for %%a in ("%TestFile%") do (
        if not %%~za == 0 (
            set "FileSize=%%~za"
        )
    )
)
echo Size:%FileSize%
pause
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aloha20200628

@echo off &for %%a in ("D:\a\a.txta") do if exist "%%~a" (echo,filesize=%%~za) else echo,filesize=0
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