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reactive.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>调色器</title>
</head>
<body>
<input type="range" id="r" min="0" max="255">
<input type="range" id="g" min="0" max="255">
<input type="range" id="b" min="0" max="255">
<div id="color" style="width: 100px; height: 100px"></div>
</body>
<script src="./reactive.js"></script>
<script>
const object = {
r: 0,
g: 0,
b: 0,
};
const po = reactive(object);
effect(() => {
document.getElementById('r').value = po.r;
document.getElementById('g').value = po.g;
document.getElementById('b').value = po.b;
document.getElementById('color').style.backgroundColor = `rgb(${po.r},${po.g},${po.b})`;
});
document.getElementById('r').addEventListener('input', event => po.r = event.target.value);
document.getElementById('g').addEventListener('input', event => po.g = event.target.value);
document.getElementById('b').addEventListener('input', event => po.b = event.target.value);
</script>
</html>