怎么把输入的值变成label的背景颜色呢，标签循环移动

Question

怎么把从textbox输入的值变成label的背景颜色，窗体启动时标签上的文字能沿窗体的主对交线循环移动

Answer 1

下面这个是碰到边界回弹示例，对角线首先label得放到对角线上，代码计算出来会跳动

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

namespace WindowsFormsApp8
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
            t = new Timer();
            t.Enabled = false;
            t.Interval = 100;//100ms移动一次
            t.Tick += T_Tick;
        }

        int x = 5, y = 5;
        private void T_Tick(object sender, EventArgs e)
        {
            
            label1.Location = new Point(label1.Location.X + x, label1.Location.Y+y);
            if (label1.Location.X > this.ClientRectangle.Width - label1.Width || label1.Location.X < 0) x = -x;
            if (label1.Location.Y > this.ClientRectangle.Height - label1.Height || label1.Location.Y < 0) y = -y;
        }

        Timer t;

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            label1.ForeColor = Color.FromName(textBox1.Text);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            t.Enabled = button1.Text=="移动";
            button1.Text = t.Enabled ? "停止" : "移动";
        }
    }
}