【www.bbyears.com--php常用代码】
对于使用JavaScript实现图片拖拽也是现在很多人会遇到的实用操作,那么具体怎么实现图片拖拽呢?实现图片拖拽效果代码是什么?下面我们具体来了解下。
Title <script> var btn=document.getElementById("btn");//获取按钮 var box=document.getElementById("box");//获取box var pbox=document.getElementById("pbox");//获取pbox var arr=["#fff143","#ff7500","#a3d900","#eedeb0","#ae7000","#b35c44","#392f41","#ff461f","#44cef6","#edd1db","#003371"];//随机颜色 //给btn注册点击事件ain btn.onclick=function(){ pbox.innerHTML="";//清空pbo for(var i=0;i<=10;i++){ var newTip =box.cloneNode(true); pbox.appendChild(newTip); var left=parseInt(Math.random()*(900-100+1) + 100);//随机生成左边距 var top=parseInt(Math.random()*(500-100+1) + 100);//随机生成上边距 var bg=Math.floor((Math.random()*arr.length));//生成数组随机数获得随机数组下标 box.style.background=arr[bg];//设置颜色 box.style.top=top+"px";//设置上边距 box.style.left=left+"px";//设置左边距 } var c=pbox.children; for(var i=0;i< c.length;i++){ c[i].onmousedown=function (e) { // alert(this.offsetLeft); var spacex=e.pageX-this.offsetLeft; var spacey=e.pageY-this.offsetTop; this.onmousemove=function (e) { this.style.left=e.pageX-spacex+"px"; this.style.top=e.pageY-spacey+"px"; } }; c[i].onmouseup=function () { this.onmousemove=null; } } } </script>