BAT批处理实现字符串截取功能

获取当前的小时数：

@echo off
 
set hour=%time:~0,2%
 
if %hour% gtr 12 (
  echo afternoon
) else (
  echo morning
)

打印windows的版本号：

@echo off
 
for /f "tokens=1,2,3,4" %%i in ('ver') do (
  set ver_temp=%%l
)
 
set ver_major=%ver_temp:~0,1%
set ver_minor=%ver_temp:~2,1%
set ver_build=%ver_temp:~-5,4%
 
echo windows version:
echo  major %ver_major%
echo  major %ver_minor%
echo  build %ver_build%