整數(shù)求和藍調(diào)，短+=短問題C#中的程序：short a, b;a = 10;b = 10;a = a + b; // Error : Cannot implicitly convert type 'int' to 'short'.// we can also write this code by using Arithmetic Assignment Operator as given belowa += b; // But this is running successfully, why?Console.Write(a);