摘要：
一 时间日期差Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->print("-----------------------------------")#classdatetime.timedelta(days=0,seconds=0,microseconds=0,milliseconds=0,minutes=0,hours=0,weeks=0)oneyear=datetime.timedelta(days=365)five 阅读全文
