Dos下获取系统时间的代码

 
rem dos get current time 
rem ======================= 
rem get yyyy/mm/dd 
set mydate=%date:~0,10% 
echo %mydate% 
rem ======================= 
rem get yyyy 
set yyyy=%date:~0,4% 
echo %yyyy% 
rem ======================= 
rem get mm 
set mm=%date:~5,2% 
echo %mm% 
rem ======================= 
rem get dd 
set dd=%date:~8,2% 
echo %dd% 
rem ======================= 
rem get yyyy-mm-dd 
set curdate=%yyyy%-%mm%-%dd% 
echo %curdate%

其实bat中获取时间就是利用截取日期字符串的方法

dos下有字符处理的方法的，总结如下：

在这个日期格式下：”2013-07-22 星期一”， 这个%date:~0,10%得到的是2013-07-22
说明：date为系统变量，“:”表示开始处理前面的字符串“~0,10”表示从第0个字符开始取10个字符。

输出：

c:\documents and settings\administrator>rem dos get current time
c:\documents and settings\administrator>rem =======================
c:\documents and settings\administrator>rem get yyyy/mm/dd
c:\documents and settings\administrator>set mydate=2013-07-22
c:\documents and settings\administrator>echo 2013-07-22
2013-07-22
c:\documents and settings\administrator>rem =======================
c:\documents and settings\administrator>rem get yyyy
c:\documents and settings\administrator>set yyyy=2013
c:\documents and settings\administrator>echo 2013
2013
c:\documents and settings\administrator>rem =======================
c:\documents and settings\administrator>rem get mm
c:\documents and settings\administrator>set mm=07
c:\documents and settings\administrator>echo 07
07
c:\documents and settings\administrator>rem =======================
c:\documents and settings\administrator>rem get dd
c:\documents and settings\administrator>set dd=22
c:\documents and settings\administrator>echo 22
22
c:\documents and settings\administrator>rem =======================
c:\documents and settings\administrator>rem get yyyy-mm-dd
c:\documents and settings\administrator>set curdate=2013  -07  -22
c:\documents and settings\administrator>echo 2013  -07  -22
2013  -07  -22
c:\documents and settings\administrator>