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標籤：utf-8 yellow 產生 UNC val class type inter value
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title></title> <style> div { width: 500px; height: 500px; background-color: black; border: 5px solid red; position: relative; } span { position: absolute; font-size: 40px; color: yellow; } </style></head><body><input type="button" value="閃閃發光" id="bt"/><input type="button" value="停止" id="bt1"/><div id="dv"></div><script src="common.js"></script><script> my$("bt").onclick = function () { timeId1 = setInterval(function () { my$("dv").innerHTML = "<span>★</span>"; var x = parseInt(Math.random() * 500 + 1); var y = parseInt(Math.random() * 500 + 1); my$("dv").firstElementChild.style.left = x + "px"; my$("dv").firstElementChild.style.top = y + "px"; }, 10) }; my$("bt1").onclick = function () { clearInterval(timeId1); };</script></body></html>
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