本文介绍了在IE / FF中使用getElementsByTagName时，自定义标签的处理方式不同的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有以下页面：
<html> <head> <title>Test</title> <script type="text/javascript"> function BuildTree() { var total = 0; var pages = document.getElementsByTagName('custom:page'); var questions = pages[0].getElementsByTagName('custom:question'); for (var i = 0; i < questions.length; ++i) { var question = questions[i]; var val = question.getAttribute('value') total += val; } alert("Total: " + total); }; </script> </head> <body> <custom:pages> <custom:page> <custom:question value="1">aaa</custom:question> <custom:question value="2">bbb</custom:question> <custom:question value="3">ccc</custom:question> </custom:page> <custom:page> <custom:question value="1">aaa</custom:question> <custom:question value="2">bbb</custom:question> <custom:question value="3">ccc</custom:question> </custom:page> </custom:pages> <input id="btnTest" type="button" value="Test" onclick="BuildTree();" /> </body> </html>当我在IE中点击Test按钮时结果是0，当我在FF中单击它时结果是0123。
When I click the Test button in IE the result is 0, when I click it in FF the result is 0123.
如何在两种浏览器中获得相同的结果？即'0123'。
How can I get the same result in both browsers? i.e. '0123'.
请注意，我已将此修改为尽可能简单的示例。我不能使用jquery或任何第三方库，我需要一个纯Javasscript解决方案。我也无法更改自定义：标签。
Note that I've trimmed this down to as simple an example as possible. I cannot use jquery or any third party libraries, I need a pure Javasscript solution. I also cannot change the custom: tags.
谢谢
推荐答案<html xmlns:custom="www.test"> <head> <title>Test</title> <script type="text/javascript"> // We want to find all the question tags withing a page tag // getElementsByTagName works fine when using standard HTML tags within each other function BuildTree() { var total = 0; // These two do not work in IE but do work in FF //var pages = document.getElementsByTagName('custom:page'); //var questions = pages[0].getElementsByTagName('custom:question'); // These only work in FireFox (and require a namespace) //var pages = document.getElementsByTagNameNS('www.test', 'page'); // FF only //var questions = pages[0].getElementsByTagNameNS('www.test', 'question'); // FF only // Adding a namespace ' xmlns:custom="www.test"' to the document and removing the 'custom:' from the search works correctly var pages = document.getElementsByTagName('page'); var questions = pages[0].getElementsByTagName('question'); for (var i = 0; i < questions.length; ++i) { var question = questions[i]; var val = question.getAttribute('value') total += val; } alert("Total: " + total); }; </script> </head> <body> <custom:pages> <custom:page> <custom:question value="1">aaa</custom:question> <custom:question value="2">bbb</custom:question> <custom:question value="3">ccc</custom:question> </custom:page> <custom:page> <custom:question value="1">aaa</custom:question> <custom:question value="2">bbb</custom:question> <custom:question value="3">ccc</custom:question> </custom:page> </custom:pages> <input id="btnTest" type="button" value="Test" onclick="BuildTree();" /> </body> </html>
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在IE / FF中使用getElementsByTagName时,自定义标签的处理方式不同
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