C#运算符
示例
通过使用operator关键字public和andstatic修饰符，可以使大多数内置运算符（包括转换运算符）超载。
运算符有三种形式：一元运算符，二进制运算符和转换运算符。
一元和二元运算符至少需要一个与包含类型相同的参数，有些则需要互补的匹配运算符。
转换运算符必须与封闭类型进行转换。
public struct Vector32
{
public Vector32(int x, int y)
{
X = x;
Y = y;
}
public int X { get; }
public int Y { get; }
public static bool operator ==(Vector32 left, Vector32 right)
=>left.X==right.X&&left.Y== right.Y;
public static bool operator !=(Vector32 left, Vector32 right)
=> !(left == right);
public static Vector32 operator +(Vector32 left, Vector32 right)
=> new Vector32(left.X + right.X,left.Y+ right.Y);
public static Vector32 operator +(Vector32 left, int right)
=> new Vector32(left.X + right,left.Y+ right);
public static Vector32 operator +(int left, Vector32 right)
=> right + left;
public static Vector32 operator -(Vector32 left, Vector32 right)
=> new Vector32(left.X - right.X,left.Y- right.Y);
public static Vector32 operator -(Vector32 left, int right)
=> new Vector32(left.X - right,left.Y- right);
public static Vector32 operator -(int left, Vector32 right)
=> right - left;
public static implicit operator Vector64(Vector32 vector)
=> new Vector64(vector.X, vector.Y);
public override string ToString() => $"{{{X}, {Y}}}";
}
public struct Vector64
{
public Vector64(long x, long y)
{
X = x;
Y = y;
}
public long X { get; }
public long Y { get; }
public override string ToString() => $"{{{X}, {Y}}}";
}例
var vector1 = new Vector32(15, 39);
var vector2 = new Vector32(87, 64);
Console.WriteLine(vector1 == vector2); //假
Console.WriteLine(vector1 != vector2); //真
Console.WriteLine(vector1 + vector2); //{102，103}
Console.WriteLine(vector1 - vector2); //{-72，-25}