.bat文件无法正常工作，想要保持前导零。

Question

我得到的无效数字。数字常量是十进制（17），十六进制（0x11）或八进制（021）。即使我现在正在运行20160801_2_2，它也会继续重命名它20160801_2。我粘贴了代码。由于

@echo off 

set FirstDay=01 

set /a Month=%date:~4,2%-1 
set Month=0%Month% 
set Month=%Month:~-2% 

set Year=%date:~10,4% 

if %Month%==00 (
    set Month=12 
    set /a Year=%Year%-1 
) 

if %Month%==01 set "LastDay=31" & goto foundate 
if %Month%==02 set "LastDay=28" & goto foundate 
if %Month%==03 set "LastDay=31" & goto foundate 
if %Month%==04 set "LastDay=30" & goto foundate 
if %Month%==05 set "LastDay=31" & goto foundate 
if %Month%==06 set "LastDay=30" & goto foundate 
if %Month%==07 set "LastDay=31" & goto foundate 
if %Month%==08 set "LastDay=31" & goto foundate 
if %Month%==09 set "LastDay=30" & goto foundate 
if %Month%==10 set "LastDay=31" & goto foundate 
if %Month%==11 set "LastDay=30" & goto foundate 
if %Month%==12 set "LastDay=31" & goto foundate 



:foundate 
echo The year is: %Year% 
echo The month is: %Month% 
echo First day of this month is: %FirstDay% 
echo Last day of this month is: %LastDay% 

set FileDir=Z:\"EpicCare Reports"\Reports_Team\Scheduled_Reports_Output \PreUHC\ 


set fileext=.txt 
set Ifile=CPT_000318_ 
set ofile=%ifile%%Year%%Month%%FirstDay%_%Year%%Month%%Lastday%%fileext% 

echo Output Filename: %ofile% 
ren %FileDir%%ifile%.txt %ofile% 

    move /Y %FileDir%%ofile% Z:\"EpicCare Reports"\Reports_Team\Scheduled_Reports_Output\UHC\ 

Answer 1

问题是与前导零，当你试图执行计算其尽快解释：

set month=08 
set /A month+=1 

会给您报告，因为08被解释为八进制数的具体错误，并且无效，因为8不能是八进制数字。

以多种方式修复。我的个人：

set month=%month:08=8% 
set month=%month:09=9% 
set /A month+=1 
set month=%month:8=08% 
set month=%month:9=09%