如何用dreamweaver在网页上做一个搜索栏
1个回答
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
function encode(s){
return s.replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/([\\\.\*\[\]\(\)\$\^])/g,"\\$1");
}
function decode(s){
return s.replace(/\\([\\\.\*\[\]\(\)\$\^])/g,"$1").replace(/>/g,">").replace(/</g,"<").replace(/&/g,"&");
}
function highlight(s){
if (s.length==0){
alert('搜索关键词未填写！');
return false;
}
s=encode(s);
var obj=document.getElementsByTagName("body")[0];
var t=obj.innerHTML.replace(/<span\s+class=.?highlight.?>([^<>]*)<\/span>/gi,"$1");
obj.innerHTML=t;
var cnt=loopSearch(s,obj);
t=obj.innerHTML
var r=/{searchHL}(({(?!\/searchHL})|[^{])*){\/searchHL}/g
t=t.replace(r,"<span class='highlight'>$1</span>");
obj.innerHTML=t;
alert("搜索到关键词"+cnt+"处")
}
function loopSearch(s,obj){
var cnt=0;
if (obj.nodeType==3){
cnt=replace(s,obj);
return cnt;
}
for (var i=0,c;c=obj.childNodes[i];i++){
if (!c.className||c.className!="highlight")
cnt+=loopSearch(s,c);
}
return cnt;
}
function replace(s,dest){
var r=new RegExp(s,"g");
var tm=null;
var t=dest.nodeValue;
var cnt=0;
if (tm=t.match(r)){
cnt=tm.length;
t=t.replace(r,"{searchHL}"+decode(s)+"{/searchHL}")
dest.nodeValue=t;
}
return cnt;
}
</script>
<style type="text/css">
.highlight{background:green;font-weight:bold;color:white;}
</style>
</head>
<body>
<form onsubmit="highlight(this.s.value);return false;">
<p><input name="s" id="s" title="搜索内容："/><input type="submit" value="搜索"/></p>
</form>
<div id="content">
内容
内容
内容
内容
内容
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
function encode(s){
return s.replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/([\\\.\*\[\]\(\)\$\^])/g,"\\$1");
}
function decode(s){
return s.replace(/\\([\\\.\*\[\]\(\)\$\^])/g,"$1").replace(/>/g,">").replace(/</g,"<").replace(/&/g,"&");
}
function highlight(s){
if (s.length==0){
alert('搜索关键词未填写！');
return false;
}
s=encode(s);
var obj=document.getElementsByTagName("body")[0];
var t=obj.innerHTML.replace(/<span\s+class=.?highlight.?>([^<>]*)<\/span>/gi,"$1");
obj.innerHTML=t;
var cnt=loopSearch(s,obj);
t=obj.innerHTML
var r=/{searchHL}(({(?!\/searchHL})|[^{])*){\/searchHL}/g
t=t.replace(r,"<span class='highlight'>$1</span>");
obj.innerHTML=t;
alert("搜索到关键词"+cnt+"处")
}
function loopSearch(s,obj){
var cnt=0;
if (obj.nodeType==3){
cnt=replace(s,obj);
return cnt;
}
for (var i=0,c;c=obj.childNodes[i];i++){
if (!c.className||c.className!="highlight")
cnt+=loopSearch(s,c);
}
return cnt;
}
function replace(s,dest){
var r=new RegExp(s,"g");
var tm=null;
var t=dest.nodeValue;
var cnt=0;
if (tm=t.match(r)){
cnt=tm.length;
t=t.replace(r,"{searchHL}"+decode(s)+"{/searchHL}")
dest.nodeValue=t;
}
return cnt;
}
</script>
<style type="text/css">
.highlight{background:green;font-weight:bold;color:white;}
</style>
</head>
<body>
<form onsubmit="highlight(this.s.value);return false;">
<p><input name="s" id="s" title="搜索内容："/><input type="submit" value="搜索"/></p>
</form>
<div id="content">
内容
内容
内容
内容
内容
</div>
</body>
</html>
追问
我看不懂这个代码，有没有文字说明，在网页上直接嵌入的那种？
追答
这个是静态网页用javascript来实现站内收拾的一个小功能 你可以拿出来先测试一下啊
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