极客观点
项目管理
HarmonyOS
show.html 包含下面的内容：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style type='text/css'>
div#html,div#css,div#js,div#run{
border:1px solid red;
height:80px;
width:80px;
float:left;
}
div#content{
clear:both;
width:400px;
height:400px;
border:1px solid black;
}
</style>
</head>
<body>
<div id='html'>html</div>
<div id='css'>css</div>
<div id='js'>js</div>
<div id='run'>run</div>
<div id='content'>
</div>
<script type="text/javascript">
var html_string = document.body.innerHTML;
var content = document.getElementById('content');
var ob_html = document.getElementById('html');
ob_html.onmouseover = function(){
content.innerText = html_string;
}
ob_html.onmouseout = function(){
content.innerText = '';
}
</script>
</body>
</html>
浏览器代开后，鼠标进入div#html，显示结果是：
我希望仅仅显示 html部分：
<div id='html'>html</div>
<div id='css'>css</div>
<div id='js'>js</div>
<div id='run'>run</div>
<div id='content'>
</div> 于是修改js部分
var html_string = document.body.innerHTML;
var content = document.getElementById('content');
var ob_html = document.getElementById('html');
var reg = new RegExp('<script type="text/javascript">.+</script>');
var onlyHtml = html_string.replace(reg,"");
ob_html.onmouseover = function(){
content.innerText = onlyHtml;
}
ob_html.onmouseout = function(){
content.innerText = '';
}为何不能提取出html部分？
var content = "<p>test</p><script type='text/javascript'>somany lines and
so many lines</script>"
var reg = new RegExp("<script type='text/javascript'>.+</script>");
var onlyHtml = content.replace(reg,"");
alert(onlyHtml);上面可是可以提供出正确的结果的哈？！
.不匹配换行符