這里只重載了“+”“-”“==”“!=”運算符。

代碼??1?using?System;
??2?using?System.Collections.Generic;
??3?using?System.Linq;
??4?using?System.Text;
??5?
??6?namespace?ConsoleDemo.Classes
??7?{
??8?????public?class?Vector
??9?????{
?10?????????public?double?X?{?get;?set;?}
?11?
?12?????????public?double?Y?{?get;?set;?}
?13?
?14?????????public?double?Z?{?get;?set;?}
?15?
?16?????????public?Vector(double?x,?double?y,?double?z)
?17?????????{
?18?????????????this.X?=?x;
?19?????????????this.Y?=?y;
?20?????????????this.Z?=?z;
?21?????????}
?22?
?23?????????public?Vector(Vector?vector)
?24?????????{
?25?????????????this.X?=?vector.X;
?26?????????????this.Y?=?vector.Y;
?27?????????????this.Z?=?vector.Z;
?28?????????}
?29?
?30?????????public?override?string?ToString()
?31?????????{
?32?????????????return?"X?=?"?+?this.X?+?",?Y?=?"?+?this.Y?+?",?Z?=?"?+?this.Z;
?33?????????}
?34?
?35?????????///?<summary>
?36?????????///?重載?ConsoleDemo.Classes.Vector?類型的“+”運算符。
?37?????????///?</summary>
?38?????????///?<param?name="lhs">運算符左側實例</param>
?39?????????///?<param?name="rhs">運算符右側實例</param>
?40?????????///?<returns></returns>
?41?????????public?static?Vector?operator?+(Vector?lhs,?Vector?rhs)
?42?????????{
?43?????????????Vector?result?=?new?Vector(lhs);
?44?????????????result.X?+=?rhs.X;
?45?????????????result.Y?+=?rhs.Y;
?46?????????????result.Z?+=?rhs.Z;
?47?????????????return?result;
?48?????????}
?49?
?50?????????///?<summary>
?51?????????///?重載?ConsoleDemo.Classes.Vector?類型的“-”運算符。
?52?????????///?</summary>
?53?????????///?<param?name="lhs">運算符左側實例</param>
?54?????????///?<param?name="rhs">運算符右側實例</param>
?55?????????///?<returns></returns>
?56?????????public?static?Vector?operator?-(Vector?lhs,?Vector?rhs)
?57?????????{
?58?????????????Vector?result?=?new?Vector(lhs);
?59?????????????result.X?-=?rhs.X;
?60?????????????result.Y?-=?rhs.Y;
?61?????????????result.Z?-=?rhs.Z;
?62?????????????return?result;
?63?????????}
?64?
?65?????????//?"*"?"/"?"%"?etc.
?66?
?67?????????///?<summary>
?68?????????///?重載?ConsoleDemo.Classes.Vector?類型的“==”運算符
?69?????????///?</summary>
?70?????????///?<param?name="lhs">運算符左側實例</param>
?71?????????///?<param?name="rhs">運算符右側實例</param>
?72?????????///?<returns></returns>
?73?????????public?static?bool?operator?==(Vector?lhs,?Vector?rhs)
?74?????????{
?75?????????????if?(lhs.X?==?rhs.X?&&?lhs.Y?==?rhs.Y?&&?lhs.Z?==?rhs.Z)
?76?????????????{
?77?????????????????return?true;
?78?????????????}
?79?
?80?????????????return?false;
?81?????????}
?82?
?83?????????///?<summary>
?84?????????///?重載?ConsoleDemo.Classes.Vector?類型的“!=”運算符
?85?????????///?</summary>
?86?????????///?<param?name="lhs">運算符左側實例</param>
?87?????????///?<param?name="rhs">運算符右側實例</param>
?88?????????///?<returns></returns>
?89?????????public?static?bool?operator?!=(Vector?lhs,?Vector?rhs)
?90?????????{
?91?????????????return?!(lhs?==?rhs);
?92?????????}
?93?
?94?????????///?<summary>
?95?????????///?重寫?Object.Equals()?方法，判斷?ConsoleDemo.Classes.Vector?類型是否相等
?96?????????///?</summary>
?97?????????///?<param?name="obj"></param>
?98?????????///?<returns></returns>
?99?????????public?override?bool?Equals(object?obj)
100?????????{
101?????????????Vector?tempVector?=?obj?as?Vector;
102?
103?????????????if?(tempVector?==?null)
104?????????????{
105?????????????????return?false;
106?????????????}
107?
108?????????????return?this?==?tempVector;
109?????????}
110?
111?????????///?<summary>
112?????????///?重寫?Object.GetHashCode()?方法，與?Object.GetHashCode()?方法等效
113?????????///?</summary>
114?????????///?<returns></returns>
115?????????public?override?int?GetHashCode()
116?????????{
117?????????????return?base.GetHashCode();
118?????????}
119?
120?????}
121?}
122?

?

需要注意的是在重寫比較運算符時：運算符總是要成對出現的；并且在重寫“==”時也要重寫 Equals() 和 GetHashCode() 方法。

轉載于:https://www.cnblogs.com/gexiaoliang/archive/2010/05/22/1741525.html

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