C#如何使图片进行随机循环 代码求解


实现出现一个之后，随机出现另一个
代码如下：
如何进行改修：
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 The_Name
{
public partial class FormGame : Form
{

public FormGame()
{
InitializeComponent();
}

int shu;

private void buttonKaiShi_Click(object sender, EventArgs e)
{

shu = SuiJi();
timer1.Start();

}

public int SuiJi()
{
int sui = 0;
Random random = new Random();
sui = random.Next(1,8);
return sui;
}

private void timer1_Tick(object sender, EventArgs e)
{


switch (shu)
{
case 1:
pictureBox1.Top += 1;
if ( pictureBox1.Top >= pldi.Height)
{
pictureBox1.Top = pldi.Top;
}

break;
case 2:
pictureBox2.Top += 1;
if (pictureBox2.Top >= pldi.Height)

{
pictureBox2.Top = pldi.Top;

}
break;
case 3:
pictureBox3.Top += 1;
if (pictureBox3.Top >= pldi.Height)
{
pictureBox3.Top = pldi.Top;
}
break;
}


}
}
}

[解决办法]
int shu = 0;
private void Form_Load(...)
{
pictureBox1.Visible = true;
pictureBox2.Visible = true;
pictureBox3.Visible = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
shu++;
switch (shu)
{
case 1:
...
pictureBox1.Visible = true;
break;
case 2:
...
pictureBox2.Visible = true;
break;
case 3:
...
pictureBox3.Visible = true;
break;
}
}