JavaScript gets mouse coordinates

Mouse coordinates include x coordinates, y coordinates, coordinates relative to the client, coordinates relative to the screen, etc.

In JavaScript, mouse coordinates exist as attributes of the event object.

The properties related to mouse coordinates in the event object are as follows.

QQ截图20161013101054.png

QQ截图20161013101100.png

Get the coordinate information of the mouse.

<html>
<head>
<title>获取鼠标的坐标信息</title>
</head>
<body>
<div id="demo">点击这里</div>
<script type="text/javascript">
document.getElementById("demo").onclick=function(e){
    var eve = e || window.event;
    var x = eve.clientX,  // 相对于客户端的X坐标
        y = eve.clientY,  // 相对于客户端的Y坐标
        x1 = eve.screenX,  // 相对于计算机屏幕的X坐标
        y1 = eve.screenY;  // 相对于计算机屏幕的Y坐标
        
    alert(
        "相对客户端的坐标：\n"+
        "x = "+x+"\n"+
        "y = "+y+"\n\n"+
        "相对屏幕的坐标：\n"+
        "x = "+x1+"\n"+
        "y = "+y1
    );
}
</script>
</body>
</html>

Continuing Learning

new file

<html> <head> <title>获取鼠标的坐标信息</title> </head> <body> <div id="demo">点击这里</div> <script type="text/javascript"> document.getElementById("demo").onclick=function(e){ var eve = e || window.event; var x = eve.clientX, // 相对于客户端的X坐标 y = eve.clientY, // 相对于客户端的Y坐标 x1 = eve.screenX, // 相对于计算机屏幕的X坐标 y1 = eve.screenY; // 相对于计算机屏幕的Y坐标 alert( "相对客户端的坐标：\n"+ "x = "+x+"\n"+ "y = "+y+"\n\n"+ "相对屏幕的坐标：\n"+ "x = "+x1+"\n"+ "y = "+y1 ); } </script> </body> </html>

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JavaScript gets mouse coordinates

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