参考：http://www.fgm.cc/learn/lesson1/03.html
image.png
<!DOCTYPE>
<html>
<head>
<meta charset= "UTF-8"/>
<title>Form Content</title>
<style type="text/css">
</style>
<script type="text/javascript">
window.onload = function(){
var inp = document.getElementsByTagName("input");
var but = document.getElementsByTagName("button")[0];
but.onclick = function(){
alert(inp[0].value+" " +inp[1].value)
}
};
</script>
</head>
<body>
<p><input type = "text" value = "Jiao" /></p>
<p><input type = "text" value = "Zhang" /></p>
<p><button>传参！</button></p>
</body>
</html>
知识点 && 易错点
-
document.getElementsByTagName("button")[0]
[0]必须要加 - input type
button、checkbox、color、date 、datetime-local 、email
file、hidden、image、month 、number 、password
radio、range 、reset、search、submit、tel、text、time
url、week
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