学习使用js实现进度条代码，并设置进度条颜色和宽度

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学习使用js实现进度条代码

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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>Progress Bar</title>
    <style>
        #progress-bar-container {
            width: 100%;
            background-color: #eee;
            border: 1px solid #ddd;
        }
        #progress-bar {
            width: 0;
            height: 30px;
            background-color: #0252D9;
            text-align: center;
            line-height: 30px;
            color: white;
            transition: width 1s ease;
        }
    </style>
</head>
<body>

<div id="progress-bar-container">
    <div id="progress-bar">0%</div>
</div>

<script>
    function updateProgress(percentage) {
        var progressBar = document.getElementById('progress-bar');
        progressBar.style.width = percentage + '%';
        progressBar.innerHTML = percentage + '%';
    }

    // 模拟一个进度更新的函数
    function simulateProgress() {
        var progress = 0;
        var interval = setInterval(function() {
            progress += 2; // 每次增加10%
            updateProgress(progress);
            if (progress >= 100) {
                clearInterval(interval);
            }
        }, 1000); // 每100毫秒更新一次进度
    }

    // 开始模拟进度
    simulateProgress();
</script>

</body>
</html>