此示例演示如何测试 Point4D 相等和不相等的结构。
以下代码演示如何使用Point4D相等方法测试Point4D相等和不相等的结构。 使用重载的相等(==)运算符测试Point4D结构是否相等，然后使用重载的不相等(!=)运算符进行不相等性测试，最后使用静态Equals方法检查Point3D结构和Point4D结构是否相等。
示例：
// instantiate Points
Point4D point4D1 = new Point4D();
Point4D point4D2 = new Point4D(15, 40, 60, 75);
Point3D point3D1 = new Point3D(15, 40, 60);
// result variables
Boolean areEqual;
Boolean areNotEqual;
String stringResult;
// defining x,y,z,w of point1
point4D1.X = 10;
point4D1.Y = 5;
point4D1.Z = 1;
point4D1.W = 4;
// checking if Points are equal
areEqual = point4D1 == point4D2;
// areEqual is False
// checking if Points are not equal
areNotEqual = point4D1 != point4D2;
// areNotEqual is True
if (Point4D.Equals(point4D1, point3D1))
{
// the if condition is not true, so this block will not execute
stringResult = "Both objects are Point4D structures and they are equal";
}
else
{
// the if condition is false, so this branch will execute
stringResult = "Parameters are not both Point4D strucutres, or they are but are not equal";
}
