关于C#编写读心术的问题

Question

现在可以把图片和button按钮显示在窗体上了，但是点击按钮只能实现一次加载，再点击图片不能更新，代码如下，请高手帮忙解决。谢谢各位！！！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 _111
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {
            Button myButton = new Button();
            myButton.Text = "重试";
            myButton.Height = 40;
            myButton.Width = 60;
            myButton.Top = 15;
            myButton.Left = 100;
            myButton.Click += new EventHandler(myButton_Click);
            this.Controls.Add(myButton);
            //Random myRandom = new Random();
            //int top = 60, left = 60;
            //int top1 = 100, left1 = 75;
            //Label[] myLabel = new Label[10];
            //int s = 1;
            //PictureBox[] myPicturebox = new PictureBox[10];
            //for (int i = 0; i < 10; i++)
            //{
            //    for (int j = 0; j < 9; j++)
            //    {
            //        string str = s.ToString();
            //        myLabel[j] = new Label();//初始化类的新实例 
            //        myLabel[j].Text = str;
            //        myLabel[j].Width = 20;
            //        myLabel[j].Height = 20;
            //        myLabel[j].Top = top1;
            //        myLabel[j].Left = left1;
            //        this.Controls.Add(myLabel[j]);
            //        left1 += 60;
            //        myPicturebox[j] = new PictureBox();//初始化picturebox的新实例
            //        myPicturebox[j].Image = System.Drawing.Bitmap.FromFile(@"icon\" + myRandom.Next(1, 40) + ".bmp");
            //        myPicturebox[j].Width = 40;
            //        myPicturebox[j].Height = 40;
            //        myPicturebox[j].Top = top;
            //        myPicturebox[j].Left = left;
            //        this.Controls.Add(myPicturebox[j]);
            //        left += 60;
            //        s = s + 1;
            //    }
            //    top1 += 60;
            //    left1 = 75;
            //    top += 60;
            //    left = 60;            //}        }
        private void myButton_Click(object sender,EventArgs e)
        {
            Random myRandom = new Random();
            int top = 60, left = 60;
            int top1 = 100, left1 = 75;
            Label[] myLabel = new Label[10];
            int s = 1;
            PictureBox[] myPicturebox = new PictureBox[10];
            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; j < 10; j++)
                { 
                    myPicturebox[j] = new PictureBox();//初始化picturebox的新实例
                    myPicturebox[j].Image = System.Drawing.Bitmap.FromFile(@"icon\" + myRandom.Next(1, 40) + ".bmp");
                    myPicturebox[j].Width = 40;
                    myPicturebox[j].Height = 40;
                    myPicturebox[j].Top = top;
                    myPicturebox[j].Left = left;
                    this.Controls.Add(myPicturebox[j]);
                    left += 60;
                    string str = s.ToString();
                    myLabel[j] = new Label();//初始化类的新实例 
                    myLabel[j].Text = str;
                    myLabel[j].Width = 40;
                    myLabel[j].Height = 20;
                    myLabel[j].Top = top1;
                    myLabel[j].Left = left1;
                    this.Controls.Add(myLabel[j]);
                    left1 += 60;
                    s = s + 1;
                }
                top1 += 60;
                left1 = 75;
                top += 60;
                left = 60;            }
        }
           }
} 
   
    

Answer 1

再次点击重新load方法啊 试试

Answer 2

好像是旧的控件没有被新的覆盖 你添加个button清除那些控件
这样可以重新加载图片private void button1_Clicked(object sender, EventArgs e)
        {            this.Controls.Clear();
            this.Controls.Add(mybutton);)//这为新的控件button
            this.Controls.Add(button1);
        }
 private void Form1_Load(object sender, EventArgs e)
        {
          mybutton.Click += new EventHandler(mybutton_Clicked);
           button1.Click += new EventHandler(button1_Click);
            this.Controls.Add(mybutton);
}

Answer 3

Random myRandom = new Random(); 这个函数不应该放在按钮内部 应该声明在外部，这个是随机数的原则 否则可能出现随机数重复的问题

Answer 4

只new一次Random是使用原则 详见MSDN