我有这段代码:
window.addEventListener("load", function() {
console.log("s");
var pres = document.querySelectorAll("pre[lang]");
console.log(pres);
for (var i = 0; i < pres.length; i++) {
console.log("x")
var lang = pres[i].getAttribute("lang");
console.log(lang);
console.log(pres[i].innerHTML);
pres[i].innerHTML = highlight_c(pres[i].innerHTML);
console.log(pres[i].innerHTML);
}
});
除了console.log
之外,所有console.log(pres[i].innerHTML);
都有效。 pres[i].innerHTML = highlight_c(pres[i].innerHTML);
也无效。但它确实在控制台中工作。当我在JavaScript控制台中运行此代码时,一切正常!但是当它从js文件运行时,它不起作用。
顺便说一句:那些凌乱的console.log
只是检查我的代码是否正在运行。
编辑:highlight_c
函数在另一个文件中定义,并且完全正常。
这是我的HTML:
<html>
<head>
<title>Index - C: Local documentation</title>
<link rel="stylesheet" type="text/css" href="styles/global.css">
<link rel="stylesheet" type="text/css" href="syntax-highlighting/styles/c.css">
<meta charset="utf-8">
</head>
<body>
<div id="container">
<div id="header">
<h1>C: Local documentation</h1>
</div>
<div id="content">
<div id="nav">
<h3>Navigation</h3>
<ul>
<li><a href="reading-files.html" class="selected">Reading files</a></li>
<li><a href="page02.html">Page 02</a></li>
<li><a href="page03.html">Page 03</a></li>
</ul>
</div>
<div id="main">
<h2>Reading files</h2>
<p>How to read files:</p>
<pre lang="c" src="reading-files.c"></pre>
<p>That's it.</p>
</div>
</div>
<div id="footer">
Copyright © 2018 Quintus Rijpstra.
</div>
</div>
<script type="text/javascript" src="scripts/pre-load.js"></script>
<script type="text/javascript" src="syntax-highlighting/load.js"></script>
<script type="text/javascript" src="syntax-highlighting/scripts/c.js"></script>
</body>
pre
标记没有内容,只有src
标记,其他函数使用该标记将文本加载到其中:
window.addEventListener("load", function() {
var pres = document.querySelectorAll("pre[src]");
for (var i = 0; i < pres.length; i++) {
var src = pres[i].getAttribute("src");
loadfile(src, load);
}
});
function load(filecontent, filename) {
var pre = document.querySelectorAll("pre[src=\"" + filename + "\"]");
for (var i = 0; i < pre.length; i++) {
pre[i].innerHTML = filecontent;
}
}
function loadfile(filename, handler) {
var xmlrequest = new XMLHttpRequest();
xmlrequest.open("GET", filename);
xmlrequest.onreadystatechange = function() {
if (xmlrequest.readyState == 4) {
if (xmlrequest.status == 200) {
var content = xmlrequest.responseText;
handler.call(null, content, filename);
}
}
};
xmlrequest.send(null);
}
任何人都可以帮助我吗? 提前谢谢!
答案 0 :(得分:0)
而不是
var pres = document.querySelectorAll("pre[lang]");
尝试让你的前期&#39; JS中标记名称的标记:
var pres = document.getElementsByTagName('pre')[lang].innerHTML;