HTML DOM Progress max 属性

htmlweb developmentfront end technology更新于 2025/6/5 4:28:17

HTML DOM progress max 属性用于返回并修改 HTML 文档中 progress 元素的 max 属性值。

语法

以下是语法 −

1. 返回 max

object.max

2. 修改 max

object.max = “number”

示例

让我们看一个 progress max 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<style>
   html{
      height:100%;
   }
   body{
      text-align:center;
      color:#fff;
      background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) center/cover no-repeat;
      height:100%;
   }
   p{
      font-weight:700;
      font-size:1.2rem;
   }
   .drop-down{
      width:35%;
      border:2px solid #fff;
      font-weight:bold;
      padding:8px;
   }
   .btn{
      background:#0197F6;
      border:none;
      height:2rem;
      border-radius:2px;
      width:35%;
      margin:2rem auto;
      display:block;
      color:#fff;
      outline:none;
      cursor:pointer;
   }
   .show{
      font-size:1.5rem;
      font-weight:bold;
   }
</style>
</head>
<body>
<h1>DOM Progress max Property Demo</h1>
<p>Status of your pending work:</p>
<p>(blue = completed & white = pending)</p>
<progress value="20" max="100" class="progress"></progress>
<button onclick="changeMax()" class="btn">Change Max = 200</button>
<div class="show"></div>
<script>
   function changeMax() {
      var progress = document.querySelector(".progress");
      var msg = document.querySelector(".show");
      msg.innerHTML = "Previous max value is " + progress.max +'';
      progress.max="200";
      msg.innerHTML += "      New max value is " + progress.max+"";   }
</script>
</body>
</html>