本文以实例讲述了C#简单的向量用法，主要包括重载运算符>：以向量长度判断是否为真、重载运算符!=、<、<=等，具体实现代码如下：
using System; class Vector { private double XVector; private double YVector; //构造函数 public Vector(double x, double y ) { XVector = x; YVector = y; } //获取向量的长度 public double GetLength( ) { double Length = Math.Sqrt( XVector*XVector + YVector*YVector ); return Length; } //重载运算符== public static bool operator == ( Vector a, Vector b ) { return ( (a.XVector == b.XVector) && (a.YVector == b.YVector) ); } //重载运算符!= public static bool operator != ( Vector a, Vector b ) { return !( a == b ); } //重载运算符>：以向量长度判断是否为真 public static bool operator > ( Vector a, Vector b ) { return a.GetLength( ) > b.GetLength( ); } //重载运算符< public static bool operator < ( Vector a, Vector b ) { return a.GetLength( ) < b.GetLength( ); } //重载运算符>= public static bool operator >= ( Vector a, Vector b ) { return ( a == b ) || ( a > b ); } //重载运算符<= public static bool operator <= ( Vector a, Vector b ) { return ( a == b ) || ( a < b ); } } class Test { static public void Main( ) { Vector vector1 = new Vector( 3, 4 ); Vector vector2 = new Vector( 0, 5 ); Vector vector3 = new Vector( 2, 2 ); Console.WriteLine("向量1为( 3, 4 ) t 向量2为( 0, 5 ) t 向量3为( 2, 2 )"); Console.WriteLine("向量1 == 向量2 为：{0}", vector1 == vector2 ); Console.WriteLine("向量1 != 向量2 为：{0}", vector1 != vector2 ); Console.WriteLine("向量1 > 向量3 为：{0}", vector1 > vector3 ); Console.WriteLine("向量2 < 向量3 为：{0}", vector2 < vector3 ); Console.WriteLine("向量1 >= 向量2 为：{0}", vector1 != vector2 ); Console.WriteLine("向量1 <= 向量2 为：{0}", vector1 != vector2 ); } }
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