摘要: Sys.Date( ) returns today's date. 显示当前日期date() returns the current date and time. 显示当前日期和时间# print today's datetoday <-Sys.Date()format(today, format= 阅读全文
posted @ 2014-03-22 18:53 emanlee 阅读(23311) 评论(0) 推荐(0)