Prototype - Event pointerX() 方法
此方法返回鼠标事件的绝对水平位置。
语法
Event.pointerX(event);
返回值
返回鼠标事件的绝对水平位置。
示例
通过单击不同位置来尝试此示例。
<html>
<head>
<title>Prototype examples</title>
<script type = "text/javascript" src = "/javascript/prototype.js"></script>
<script>
// 注册事件"click"及相关回调。
Event.observe(document, 'click', respondToClick);
// 回调函数来处理事件。
function respondToClick(event) {
var x_axis = Event.pointerX(event);
alert("Horizontal position : " + x_axis);
}
</script>
</head>
<body>
<p id = "note">Click anywhere to see the result.</p>
<p id = "para1">This is paragraph 1</p>
<p id = "para2">This is paragraph 2</p>
<div id = "division">This is divsion.</div>
</body>
</html>
prototype_event_handling.html
