getElementsByTagName
<!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></title>
<script type="text/javascript">
function btnClick() {
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
var input = inputs[i];
input.value = "hi man come girl";
}
}
</script>
</head>
<body>
<input type="text" />
<input type="text" />
<input type="text" />
<input type="text" />
<input type="text" />
<input type="text" />
<input type="button" value="给所有input标签赋值" onclick="btnClick()" />
</body>
</html>
