重载运算符
========================================运算符重载
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-------------------------------------------------------------------------Vector.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication4 { public struct Vector//结构和类是相似的 { public int x, y, z; public Vector(int x, int y, int z)//构造函数 { this.x = x; this.y = y; this.z = z; } public Vector(Vector v)//构造函数 { this.x = v.x; this.y = v.y; this.z = v.z; } public override string ToString()//重载tostring方法 { return string.Format("x:{0};y:{1};z:{2}", x, y, z); } //重载运算符 //第一个参数是运算符左边的,第二个参数是运算符右边的 //+ - * / 是一样的 public static Vector operator *(Vector lhs, Vector rhs) { Vector v = new Vector(lhs); v.x *= rhs.x; v.y *= rhs.y; v.z *= rhs.z; return v; } } }
-------------------------------------------------------------------------主程序
Vector v1 = new Vector(1, 2, 3); Vector v2 = new Vector(3, 2, 1); Console.WriteLine((v1 * v2).ToString());//输出x:3;y:4;z:3 Console.ReadKey();
========================================比较运算符重载
-------------------------------------------------------------------------Vector.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication4 { public struct Vector//结构和类是相似的 { public int x, y, z; public Vector(int x, int y, int z)//构造函数 { this.x = x; this.y = y; this.z = z; } public Vector(Vector v)//构造函数 { this.x = v.x; this.y = v.y; this.z = v.z; } public override string ToString()//重载tostring方法 { return string.Format("x:{0};y:{1};z:{2}", x, y, z); } //重载比较运算符 //== 与!= 需成对出现 //> 与 < 需成对出现 //>= 与 <= 需成对出现 public static bool operator ==(Vector lhs, Vector rhs) { Vector v = new Vector(lhs); if (v.x == rhs.x && v.y == rhs.y && v.z == rhs.z) { return true; } else { return false; } } //重载比较运算符 public static bool operator !=(Vector lhs, Vector rhs) { return !(lhs == rhs); } } }
-------------------------------------------------------------------------主程序
Vector v1 = new Vector(1, 2, 3); Vector v2 = new Vector(1, 2, 3); Console.WriteLine(v1 == v2);//true Console.ReadKey();
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