Question

C#button之怎样点击按钮使之循环改变背景颜色

Answer 1

以下代码实现这个功能

using System;
using System.Drawing;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        
        Color[] c = { Color.Red, Color.Green, Color.Blue };
        int i = 0;
        
        public Form2()
        {
            InitializeComponent();
            this.BackColor = c[0];
        }


        private void button1_Click_1(object sender, EventArgs e)
        {
            i++;
            if (i >= c.Length) 
            {
                i = 0;
            }
            this.BackColor = c[i];
        }
    }
}