<!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>
<title>Untitled Page</title>
<script>
function dispForm()
{
n=document.MyForm01.elements.length;
s="";
for(j=0;j<n;j++)
{
s=s+document.MyForm01.elements[j].id+":"+document.MyForm01.elements[j].value+"\n";
}
if(s=="")
s="没有任何内容";
document.MyForm02.Msg.value=s;
}
</script>
</head>
<body>
<form name="MyForm01">
姓名:<input id="Name" type="text" /><br />
年龄:<input id="Age" type="text" /><br />
职业:<input id="Occupation" type="text" /><br />
</form>
<form name="MyForm02">
<input id="确认" type="button"value="确认" onclick="ispForm()"/>
<textarea id="Msg" cols="35" rows="10"></textarea>
</form></body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Untitled Page</title>
<script>
function dispForm()
{
n=document.MyForm01.elements.length;
s="";
for(j=0;j<n;j++)
{
s=s+document.MyForm01.elements[j].id+":"+document.MyForm01.elements[j].value+"\n";
}
if(s=="")
s="没有任何内容";
document.MyForm02.Msg.value=s;
}
</script>
</head>
<body>
<form name="MyForm01">
姓名:<input id="Name" type="text" /><br />
年龄:<input id="Age" type="text" /><br />
职业:<input id="Occupation" type="text" /><br />
</form>
<form name="MyForm02">
<input id="确认" type="button"value="确认" onclick="ispForm()"/>
<textarea id="Msg" cols="35" rows="10"></textarea>
</form></body>
</html>
<input id="确认" type="button"value="确认" onclick="ispForm()"/>
<textarea id="Msg" cols="35" rows="10"></textarea>
</form>
应该改为
<form name="MyForm02">
<input id="确认" type="button"value="确认" onclick="dispForm()"/>
<textarea id="Msg" cols="35" rows="10"></textarea>
</form>
写错了,就报缺少对象
<!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>
<title>Untitled Page</title>
<script>
function dispForm()
{
n=document.MyForm01.elements.length;
s="";
for(j=0;j<n;j++)
{
s=s+document.MyForm01.elements[j].id+":"+document.MyForm01.elements[j].value+"\n";
}
if(s=="Name:\nAge:\nOccupation:\n")
s="没有任何内容";
document.MyForm02.Msg.value=s;
}
</script>
</head>
<body>
<form name="MyForm01">
姓名:<input id="Name" type="text" /><br />
年龄:<input id="Age" type="text" /><br />
职业:<input id="Occupation" type="text" /><br />
</form>
<form name="MyForm02">
<input id="确认" type="button"value="确认" onclick="dispForm()"/>
<textarea id="Msg" cols="35" rows="10"></textarea>
</form></body>
</html>