self-confidence,the source of all the power

摘要： 1.例子echo %time:～0，-1% 显示时间字符，从第0个到最后一个C:\Documents and Settings>echo %time:~0,-1%19:00:22.3C:\Documents and Settings>echo %time%19:00:29.49C:\Documents and Settings>echo %date:~2,-1%12-09-27 星期C:\Documents and Settings>echo %date:~,3% //第2个参数为正则表示显示的个数，为负则表示显示字符的终点下标201C:\Documents and S 阅读全文