1.加法
2.减法
3.乘法
运算符重载
package javax
class Complex {
private var real:Int = 0
private var image:Int = 0
constructor()
constructor(real:Int,image:Int) {
this.real = real
this.image = image
}
operator fun plus(c:Complex):Complex{
return Complex(c.real + real,c.image+image)
}
operator fun minus(c:Complex):Complex{
return Complex(c.real - real,c.image-image)
}
operator fun times(c:Complex):Complex{
return Complex(this.real*c.real-this.image*c.image,this.image*c.real+this.real+c.image)
}
override fun toString(): String {
val img = if (image>=0) "+ ${image}i" else "${image}i"
return "$real $img"
}
}
fun main(args:Array<String>) {
val c1 = Complex(1,1)
val c2 = Complex(2,2)
println(c1)
println(c2)
println(c1+c2)
println(c1-c2)
println(c1*c2)
}
