2024年2月21日发(作者：)
红绿灯
namespace Redgreenyllow
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
d = true;
}
private void Form1_Load(object sender, EventArgs e)
{
ndex = 0;
}
private void timer1_Tick(object sender, EventArgs e)
{
if (ndex == 0)
{
+= 1;
+= 10;
if (==m)
{
= 0;
if ( == m)
{
=0;
ndex = 2;
}
}
}
if (ndex == 2)
{
+= 1;
+= 25;
if ( == m)
{
= 0;
if ( == m)
{
=0;
ndex = 1;
}
}
}
if (ndex == 1)
{
+= 1;
+= 10;
if ( == m)
{
= 0;
if ( == m)
{
=0;
ndex = 0;
}
}
}
}
private void button2_Click(object sender, EventArgs e)
{
d = false;
}
}
Listview
namespace view
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
for(int i=0;i<;i++)
{
if ([i].Text== )
{
("不能重复添加！");
= "";
break;
}
if(i==-1)
{
();
return;
}
}
}
private void button2_Click(object sender, EventArgs e)
{
for (int i = 0; i < ; i++)
{
if ([i].Text == )
{
("不能重复添加！");
= "";
return;
}
if (i == - 1)
{
();
return;
}
}
}
private void button3_Click(object sender, EventArgs e)
{
TreeNode rootNode = new TreeNode();
rootNode = edNode;
try
{
if ( == 0)
{
//移除当前节点
(rootNode);
}
else
{
( "该节点包含子节点！不能删除");
}
}
catch (Exception ex)
{
// 抛出异常
throw new Exception(e, ex);
}
}
private void button4_Click(object sender, EventArgs e)
{
();
}
}
}
Picture
namespace ViewPicture
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private int nextShowNo = 0;
private void button1_Click(object sender, EventArgs e)
{
();
}
private void timer1_Tick(object sender, EventArgs e)
{
if (nextShowNo == )
{
nextShowNo = 0;
}
= [nextShowNo];
nextShowNo++;
}
private void button2_Click(object sender, EventArgs e)
{
d = false;
();
}
}
}
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