<!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=gb2312" />
<title>无标题文档</title>
<script language="javascript">
function matchText()
{
var say=document.getElementById("inputText").value;
var x=document.getElementsByTagName("p");
document.writeln(x[0].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.write(x[1].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.writeln(x[2].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.writeln(x[3].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
}
</script>
</head><body>
<p >www.51js.ccm</p>
<p >bbs.51js.com</p>
<p >Javascript is not Java</p>
<p >Javascript is fun and I like Javascript</p>
<label>
<input type="text" name="textfield" id="inputText" />
</label>
<label>
<input type="button" name="Submit" value="提交" onclick="matchText()" />
</label>
</p>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script language="javascript">
function matchText()
{
var say=document.getElementById("inputText").value;
var x=document.getElementsByTagName("p");
document.writeln(x[0].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.write(x[1].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.writeln(x[2].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
document.writeln(x[3].innerHTML.replace(say,"<font color=red>"+ say +"</font>"));
}
</script>
</head><body>
<p >www.51js.ccm</p>
<p >bbs.51js.com</p>
<p >Javascript is not Java</p>
<p >Javascript is fun and I like Javascript</p>
<label>
<input type="text" name="textfield" id="inputText" />
</label>
<label>
<input type="button" name="Submit" value="提交" onclick="matchText()" />
</label>
</p>
</body>
</html>
<!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=gb2312" />
<title>无标题文档</title>
<script language="javascript">
function matchText()
{
var say=document.getElementById("inputText").value; var x=document.getElementsByTagName("p");
for(var i=0;i<x.length;i++)
x[i].innerHTML = x[i].innerHTML.replace(say,"<font color=red>"+ say +"</font>");
}
</script>
</head><body>
<p >www.51js.ccm</p>
<p >bbs.51js.com</p>
<p >Javascript is not Java</p>
<p >Javascript is fun and I like Javascript</p>
<label>
<input type="text" name="textfield" id="inputText" />
</label>
<label>
<input type="button" name="Submit" value="提交" onclick="matchText()" />
</label>
</p>
</body>
</html>
<head>
<script type="text/javascript">
function alertValue()
{
alert(document.getElementById("text1").value)
}
</script>
</head>
<body><form>
<input type="text" id="text1" value="Hello world!" />
<input type="button" id="button1" onclick="alertValue()" value="Show default value" />
</form></body>
</html>
你是想要这样的效果吗?
(var num = document.getElementById("count").value;
num += 1;)这里的加等是字符串相加了,应该怎么写? 求解
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title><script type="text/javascript">
function matchText()
{
var say=document.getElementById("inputText").value;
for(i=0;i<document.getElementsByTagName("p").length;i++){
document.getElementsByTagName("p")[i].innerHTML=say;
}
}
</script></head><body>
<p>www.51js.ccm</p>
<p>bbs.51js.com</p>
<p>Javascript is not Java</p>
<p>Javascript is fun and I like Javascript</p>
<p>Java is fun and I like Javascript</p>
<p>php is fun and I like Javascript</p>
<label>
<input type="text" name="textfield" id="inputText" value=""/>
</label>
<label>
<input type="button" name="Submit" value="提交" onclick="matchText()" />
</label></body>
</html>这个应该是LZ想要的效果