using System;
namespace _003_变量
{
class Program
{
static void Main(string[] args)
{
int a = 3, b = 8;
Console.WriteLine(a + b);//11
Console.WriteLine("a + b");//a + b
Console.WriteLine(a + "+" + b);//3+8
Console.WriteLine("a+b" + a + b);//a+b38
Console.WriteLine("a+b" + (a + b));//a+b11
}
}
}