C # Learning -- Operator Overloading

 

Operator Overloading means to redefine existing operators and assign them another function to adapt to different data types.

To overload operators, you must useOperatorKeyword, and use the access modifier static to modify. As follows:

View code

 1   Using  System;  2   Using  System. Collections. Generic;  3   Using  System. LINQ;  4   Using System. text;  5   6   Namespace  Leleapplication3  7   {  8       Class  Program  9   {  10           Public   Class  Sum  11  {  12               # Region Members 13               Public   Int  Num1;  14               Public   Int  Num2;  15               # Endregion  16   17               # Region Constructor 18              Public Sum ( Int Number1, Int  Number2)  19   {  20                   This . Num1 = Number1;  21                   This . Num2 = Number2;  22   }  23               # Endregion 24   25               # Region Operator 26               Public   Static Sum Operator + (Sum sum1, sum sum2)  27   {  28                   Return   New Sum (sum1.num1 + sum2.num1, sum2.num2 + Sum1.num2 );  29  }  30               # Endregion  31   32   33   }  34           Static   Void Main ( String  [] ARGs)  35   {  36 Sum sumfirst = New Sum (5 , 6  );  37 Sum sumsecond = New Sum ( 6 , 5  );  38 Sum sumthird = sumfirst + Sumsecond;  39   40 Console. writeline ( "  Sumthird. num1 = {0}, sumthird. num2 = {0} "  , Sumthird. num1, sumthird. num2 );  41   Console. readkey ();  42   }  43   }  44 }

The running result is: