C#里面比较时间大小三种方法

DateTime   t1   =   new   DateTime(100);   
  DateTime   t2   =   new   DateTime(20);   
    
  if   (DateTime.Compare(t1,   t2)   >     0)   Console.WriteLine("t1   >   t2");     
  if   (DateTime.Compare(t1,   t2)   ==   0)   Console.WriteLine("t1   ==   t2");     
  if   (DateTime.Compare(t1,   t2)   <     0)   Console.WriteLine("t1   <   t2");   
 

 

 

1。比较时间大小的实验

string st1="12:13";

string st2="14:14";

DateTime dt1=Convert.ToDateTime(st1);

DateTime dt2=Convert.ToDateTime(st2);