查找页面中所有相对 URL 的基准 URL
- <!DOCTYPE html>
- <html>
- <head>
- <base id="myBaseId" href="http://www.yousite.com/books/jsref/" />
- </head>
- <body>
- <p>单击按钮以显示 base 元素的 href 属性的值。</p>
- <button onclick="myFunction()">试一试</button>
- <p id="demo"></p>
- <script>
- function myFunction() {
- var x = document.getElementById("myBaseId").href;
- document.getElementById("demo").innerHTML = x;
- }
- </script>
- </body>
- </html>