Question

C#FillRectangle方法，无法输入PointtoRect。

想做成像图二一样的效果，但是输入PointtoRect的时候没反应啊，有些人说是把PointtoRect前面的逗号换成点，我换了还是没用啊？

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Answer 1

class Rectangle { public Rectangle() { } private double length; /// <summary> /// 长 /// </summary> public double Length { get { return length; } set { length = value; } } private double width; /// <summary> /// 宽 /// </summary> public double Width { get { return width; } set { width = value; } } public Rectangle(double length, double width) { this.Length = length; this.Width = width; } /// <summary> /// 计算面积 /// </summary> public double Area(double length, double width) { return length * width; } /// <summary> /// 计算周长 /// </summary> public double Perimeter(double length, double width) { return (length + width)*2; } }

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发我这些干嘛？