namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            //用来随机改变窗体的外观颜色
            Random rd = new Random();
            int r = rd.Next(256); int g = rd.Next(256); int b = rd.Next(256);//Next(256)表示0-255取随机值
            BackColor = Color.FromArgb(r, g, b);
            toolTip1.SetToolTip(button1, "该按钮用来把10个不同的数据进行从小到大排序");
            string w;
            int i, j, m;
            int[] array = new int[10];
            w = textBox1.Text;
            string[] split = w.Split(new Char[] { ',' }); //Split('，')是以‘，’分割w，split是一个包含被分割后的字符数组。
            for (i = 0; i < 10; i++)
            {
                array[i] = int.Parse(split[i]);
            }
            for (i = 0; i < 9; i++)
            {
                for (j = i + 1; j < 10; j++)
                {
                    if (array[i] > array[j])
                    {
                        m = array[i]; array[i] = array[j]; array[j] = m;
                    }
                }
            }
            for (i = 0; i < 10; i++)
                textBox2.Text += array[i] + ",";
                textBox2.Text = textBox2.Text.TrimEnd(',');//去除尾部的指定字符
                label2.Text = "已经排序";
                label2.ForeColor = Color.Blue;
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            if (this.textBox1.Text == textBox1.Text)//验证文本框内容变动事件，this用作扩展方法的第一个参数的修饰符
                textBox2.Clear();
        }
    }
}