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@@ -0,0 +1,70 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ .progress-content {
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+ width: 500px;
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+ height: 80px;
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+ border: 5px solid black;
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+ border-radius: 10px;
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+ position: relative;
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+ overflow: hidden;
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+ }
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+
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+ .progress-content .progress-bg {
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+ width: 0;
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+ height: 80px;
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+ background-color: orange;
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+ }
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+
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+ .progress-num {
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+ color: #999;
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+ font-size: 40px;
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+ font-weight: bold;
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+ position: absolute;
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+ top: 0;
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+ left: 20px;
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+ height: 80px;
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+ line-height: 80px;
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+ }
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+ </style>
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+</head>
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+
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+<body>
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+ <div class="progress-content">
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+ <div class="progress-bg"></div>
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+ <div class="progress-num">
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+ 0%
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+ </div>
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+ </div>
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+ <button>开始</button>
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+ <script>
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+ // 获取元素
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+ var progressNum = document.querySelector(".progress-num");
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+ var progressBg = document.querySelector(".progress-bg");
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+ var btn = document.querySelector("button");
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+ var timer = 0;
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+ // 按钮绑定事件
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+ btn.onclick = function () {
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+ var num = 0;
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+ // 进度条动画
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+ timer = setInterval(function () {
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+ if (num >= 100) {
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+ clearInterval(timer);
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+ } else {
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+ num++;
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+ progressBg.style.width = num + "%";
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+ progressNum.innerText = num + "%";
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+ }
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+ }, 16)
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+ }
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+
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+
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+ </script>
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+</body>
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+
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+</html>
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