【Javascript网页设计】在线图片画板案例
代码如下：
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>在线画板</title>
<style>
body {
text-align: center;
font-family: Arial, sans-serif;
margin: 20px;
}
.toolbar {
margin-bottom: 10px;
}
canvas {
border: 2px solid #000;
cursor: crosshair;
}
button {
margin: 5px;
padding: 8px 15px;
border: none;
background-color: #007bff;
color: white;
cursor: pointer;
border-radius: 5px;
}
button:hover {
background-color: #0056b3;
}
</style>
</head>
<body>
<h2>🎨 在线画板</h2>
<div class="toolbar">
<label>颜色：
<input type="color" id="colorPicker" value="#000000">
</label>
<label>画笔大小：
<input type="range" id="sizePicker" min="1" max="10" val