跟随鼠标移动丨方向键控制
有很多不是很好，请大家多多批评。
代码以下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
#haimian {
position: absolute;
/*绝对定位*/
width: 300px;
height: 200px;
/*我的是图片太大 ,设置图片的大小*/
}
</style>
</head>
<body>
<img src="img/4.jpg" id="haimian" />
<!--//鼠标-->
<script>
function DivFlying() {
var baobao = document.getElementById("haimian");
if(!baobao) { return; }
// window.event 事件对象的状态
var intX = window.event.clientX;
var intY = window.event.clientY;
baobao.style.left = intX + "px";
baobao.style.top = intY + "px";
}
document.onmousemove = DivFlying;
</script>
<!-- //键盘-->
<script>
var x = 0;
var y = 0;
document.onkeydown = function(e) {
console.log(e.keyCode);
//上 38
//下 40
//左 37
//右 39
if(e.keyCode == 38) {
y = y - 10;
}
if(e.keyCode == 40) {
y = y + 10;
}
if(e.keyCode == 37) {
x = x - 10;
}
if(e.keyCode == 39) {
x = x + 10;
}
var baobao = document.getElementById("haimian");
baobao.style.top = y + "px";
baobao.style.left = x + "px";
}
</script>
</body>
</html>
