Question

C# 实例化 错误 1 “画圆.getRandomColor”是“类型”，但此处被当做“变量”来使用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 画圆
{
class getRandomColor
{

Random random = new Random();

Color getRandomColor()
{

return Color.FromArgb(

random.Next(256),

random.Next(256),

random.Next(256));

}
}

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
Graphics g = this.CreateGraphics();

int x0 = this.Width / 2;

int y0 = this.Height / 2;

for (int r = 0; r < this.Height / 2; r++)
{

g.DrawEllipse(

new Pen(getRandomColor(), 1),

x0 - r, y0 - r, r * 2, r * 2

);

}

g.Dispose();
}
}
}

Answer 1

Console.WriteLine(A, i);
这句不对
改成

Console.WriteLine(A.i);