通过js脚本实现单元格上下拖动排序效果，用户鼠标压住单元格拖动即可，很实用的单元格拖动js特效分享。
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<title>js实现单元格上下拖动效果_武鸣人</title>
<script>
window.onload = function(){
//绑定事件
var addEvent = document.addEventListener ? function(el,type,callback){
el.addEventListener( type, callback, !1 );
} : function(el,type,callback){
el.attachEvent( "on" + type, callback );
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
//移除事件
var removeEvent = document.removeEventListener ? function(el,type,callback){
el.removeEventListener( type, callback );
} : function(el,type,callback){
el.detachEvent( "on" + type, callback);
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
//精确获取样式
var getStyle = document.defaultView ? function(el,style){
return document.defaultView.getComputedStyle(el, null).getPropertyValue(style)
} : function(el,style){
style = style.replace(/\-(\w)/g, function($, $1){
return $1.toUpperCase();
});
return el.currentStyle[style];
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
var dragManager = {
clientY:0,
draging:function(e){//mousemove时拖动行
var dragObj = dragManager.dragObj;
if(dragObj){
e = e || event;
if(window.getSelection){//w3c
window.getSelection().removeAllRanges();
}else if(document.selection){
document.selection.empty();//IE
}
var y = e.clientY;
var down = y > dragManager.clientY;//是否向下移动
var tr = document.elementFromPoint(e.clientX,e.clientY);
if(tr && tr.nodeName == "TD"){
tr = tr.parentNode
dragManager.clientY = y;
if( dragObj !== tr){
tr.parentNode.insertBefore(dragObj, (down ? tr.nextSibling : tr));
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
};
}
},
dragStart:function(e){
e = e || event;
var target = e.target || e.srcElement;
if(target.nodeName === "TD"){
target = target.parentNode;
dragManager.dragObj = target;
if(!target.getAttribute("data-background")){
var background = getStyle(target,"background-color");
target.setAttribute("data-background",background)
}
//显示为可移动的状态
target.style.backgroundColor = "#ccc";
target.style.cursor = "move";
dragManager.clientY = e.clientY;
addEvent(document,"mousemove",dragManager.draging);
addEvent(document,"mouseup",dragManager.dragEnd);
}
},
dragEnd:function(e){
var dragObj = dragManager.dragObj
if (dragObj) {
e = e || event;
var target = e.target || e.srcElement;
if(target.nodeName === "TD"){
target = target.parentNode;
dragObj.style.backgroundColor = dragObj.getAttribute("data-background");
dragObj.style.cursor = "default";
dragManager.dragObj = null;
removeEvent(document,"mousemove",dragManager.draging);
removeEvent(document,"mouseup",dragManager.dragEnd);
}
}
},
main:function(el){
addEvent(el,"mousedown",dragManager.dragStart);
}
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
var el = document.getElementById("www_wuming_ren");
dragManager.main(el);
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
</script>
<style>
.www_wuming_ren{
width:60%;
border: 1px solid red;
border-collapse: collapse;
}
.www_wuming_ren td{
border: 1px solid red;
height: 20px;
}
</style>
</head>
<body>
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鼠标压住单元格上下拖动
<table id="www_wuming_ren" class="www_wuming_ren">
<tbody>
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