相對于上一篇，優化了拖拽的效果。
js代碼:fun.js
_MoveObj = null;//全部變量，用來表示目前div
z_index = 0;//z方向
jQuery.fn.myDrag=function(){
_IsMove = 0; //是否移動 1.移動
_MouseLeft = 0; //div left坐标
_MouseTop = 0; //div top坐标
$(document).bind("mousemove",function(e){
if(_IsMove==1){
$(_MoveObj).offset({top:e.pageY-_MouseLeft,left:e.pageX-_MouseTop});
}
}).bind("mouseup",function(){
_IsMove=0;
$(_MoveObj).removeClass("downMouse");
});
return $(this).bind("mousedown",function(e){
_IsMove=1;
_MoveObj = this;
var offset =$(this).offset();
_MouseLeft = e.pageX - offset.left;
_MouseTop = e.pageY - offset.top;
z_index++;
_MoveObj.style.zIndex=z_index;
$(_MoveObj).addClass("downMouse");
});
}
html代碼:
demo.htm
.myDiv{
background:#EAEAEA;
width: 100px;
height: 100px;
border: 1px solid;
cursor: pointer;
text-align: center;
line-height: 100px;
}
.downMouse{
cursor:move;
filter:alpha(Opacity=80);
-moz-opacity:0.5;
opacity: 0.5;
background-color:#ffffff;
}
$(function(){
$(".myDiv").myDrag();
//$("#myDiv2").myDrag();
})
拖拽1 拖拽2 拖拽3 拖拽4 拖拽5 拖拽6
