c# DateTime用法总结

DateTime 数字型 
System.DateTime currentTime=new System.DateTime(); 

       //当前时间
            Console.WriteLine(now);
            //年月日 - 时分秒(为0)
            Console.WriteLine(now.Date.ToString());
            //年月日 - 时分
            Console.WriteLine(now.ToString("yyyy-MM-dd hh:mm"));
            //年月日
            Console.WriteLine(now.ToString("yyyy-MM-dd"));
            //时分
            Console.WriteLine(now.ToString("HH:mm:ss"));
            //增加一天
            DateTime afterNow = now.AddDays(1);
            Console.WriteLine(afterNow);
            //减去一天
            DateTime beforeNow = now.AddDays(-1);
            Console.WriteLine(beforeNow);
            //A-B
            DateTime startDate = now.Date;
            DateTime endDate = now.AddDays(1).Date;

注意:

YYYY是年

MM是月份

mm是分钟

hh是12进制小时

HH是24进制小时

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转载自blog.csdn.net/weixin_43472073/article/details/106983155
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