有点奇怪的例子,但是这里有:
当插入超出其边界的内容时,如何获得绝对定位的DIV？这是代码:
<html>
<head>
<style>
* {margin: 0; padding: 0;}
body {white-space: nowrap; text-align: center; color: white; font-size: 2em;}
div#container {position: relative; height: 100px; width: 50px;}
div#a {height: 50px; width: 25px; background-color: red; position: absolute; top: 0; left: 0;}
div#b {height: 50px; width: 25px; background-color: blue; position: absolute; top: 0; right: 0}
div#c {height: 50px; width: 25px; background-color: orange; position: absolute; bottom: 0; left: 0;}
div#d {height: 50px; width: 25px; background-color: purple; position: absolute; bottom: 0; right: 0;}
span#title {position: …在下面的例子中,为什么输入"test"的"值"不会更新为"second"？
<html>
<head>
<script type="text/javascript">
getText = function() {
var test = document.getElementById('test').value;
test = "second";
//note: if you insert "alert(test)" it returns "second"
}
</script>
</head>
<body>
<label for="test">Test </label><input type="text" id="test" value="first" onclick="getText()"></input>
</body>
</html>
这两者有什么区别？
collapse: function(fold)
{
...
...
}
和
function collapse(fold)
{
...
...
}