HTML DOM Progress Max 属性
HTML DOM 进度 max 属性在 HTML 文档中返回并更改 progress 元素中 max 属性的值。
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>
输出
这将产生以下输出 -
点击“更改 Max=200”按钮来更改进度条的 max 属性的值。
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