<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>传参</title>
</head>
<body>
<input type="text" value="北京">
<input type="text" value="大学">
<button>传参</button>
<script type="text/javascript">
window.onload = function(){
var my_fn = function(a, b) {
alert(a.value);
alert(b.value);
};
var ipt = document.getElementsByTagName('input');
var btn = document.getElementsByTagName('button')[0]; //这里要有后缀[0]
btn.onclick = function(){
my_fn(ipt[0], ipt[1]);
};
}
</script>
</body>
</html>