我有一个示例代码:
javascript:
function bootstrap(id) {
this.id = id;
this.init = function() {
document.getElementById(this.id).onmousemove = positionButton;
}
function positionButton(e) {
e = e || window.event;
var cursor = {x:0, y:0};
if (e.pageX || e.pageY) {
cursor.x = e.pageX;
cursor.y = e.pageY;
} else {
cursor.x = e.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
cursor.y = e.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
}
var elem = document.getElementById(this.id);
elem.style.position = 'absolute';
elem.style.top = cursor.y - 10 + 'px';
elem.style.left = cursor.x - 30 + 'px';
}
}
在 html 中:
<div id="button" style="position: absolute; opacity: 1; z-index: 100; width:27px; height:20px; overflow:hidden">
test test
</div>
<script type="text/javascript" src="script.js"></script>
<script>
var bootstrap = new bootstrap('button');
bootstrap.init();
</script>
当我运行代码时,结果没有运行事件 mousemove,如何解决?