DateTime.Now 时间格式问题

Question

string TomorrowTime = DateTime.Now.AddDays(1).ToShortDateString().Substring(4);
//明天日期这个TomorrowTime 取出的值是-3-4，请问什么让它取出的值是两位数啊？就是这样-03-04

Answer 1

string TomorrowTime = DateTime.Now.AddDays(+1).ToShortDateString().Substring(4);

Answer 2

string TomorrowTime = DateTime.Now.AddDays(1).ToString("yyyy-MM-dd").Substring(4);

Answer 3

string TomorrowTime = DateTime.Now.AddDays(1).ToString("yyyy-MM-dd").Substring(4);

Answer 4

            string TomorrowTime = DateTime.Now.AddDays(1).ToString("-MM-dd");

Answer 5

string TomorrowTime = DateTime.Now.AddDays(1).ToString("yyyy-MM-dd");

Answer 6

++
DateTime.Now.ToString("yyyy/MM/dd").Substring(4);

Answer 7

DateTime.Now.AddDays(1)
DateTime.Now.AddDays(+1)
这两个值都一样

Answer 8

字符串 format问题，加个tostring（“yyyy-MM-dd”） 就可以了