<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body style="width: 100%;height: 100vh;" onmousemove="getMovePosit(event)" onmousedown="getNowMove(event)">
<span id="ospan"></span>
</body>
<script language="JavaScript">
var oldY,oldX;
function getNowMove(event){
oldY = event.clientY, oldX = event.clientX;
console.log(oldY,oldX);
}
function getMovePosit(event) {
if (oldY == event.clientY) {
document.all.ospan.innerText = "鼠标没有动静了？"
}
if (oldY > event.clientY) {
document.all.ospan.innerText = "鼠标向上移了"
}
if (oldY < event.clientY) {
document.all.ospan.innerText = "鼠标向下移了"
}
if (oldX > event.clientX) {
document.all.ospan.innerText = "鼠标向左移了"
}
if (oldX < event.clientX) {
document.all.ospan.innerText = "鼠标向右移了"
}
oldY = event.clientY, oldX = event.clientX;
console.log('error');
}
</script>
</html>
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