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  • HTML5的拖放功能

    <!DOCTYPE html>            
    <html>            
    <head>            
        <meta charset="UTF-8">            
        <title>H5拖放</title>         
        <style type="text/css">
            body{font-size:84%;}
            .dustbin{100px; height:260px; line-height:1.4; background-color:gray; font-size:36px; font-family:"微软雅黑", "Yahei Mono"; text-align:center; text-shadow:-1px -1px #bbb; float:left;}
            .dragbox{500px; padding-left:20px; float:left;}
            .draglist{padding:10px; margin-bottom:5px; border:2px dashed #ccc; background-color:#eee; cursor:move;}
            .draglist:hover{border-color:#cad5eb; background-color:#f0f3f9;}
            .dragremind{padding-top:2em; clear:both;}    
        </style>
    </head>            
    <body>    
        <div class="dustbin"><br />垃<br />圾<br />箱</div>
        <div class="dragbox">
            <div class="draglist" title="拖拽我" draggable="true">垃圾</div>
        </div>
        <div class="dragremind"></div>
        <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
        <script type="text/javascript">  
            var eleDustbin = $(".dustbin")[0], eleDrags = $(".draglist")[0], eleRemind = $(".dragremind")[0], eleDrag = null;
            eleDrags.onselectstart = function() {
                return false;
            };
            eleDrags.ondragstart = function(ev) {
                /*拖拽开始*/
                //拖拽效果
                ev.dataTransfer.effectAllowed = "move";
                ev.dataTransfer.setData("text", ev.target.innerHTML);
                ev.dataTransfer.setDragImage(ev.target, 0, 0);
                eleDrag = ev.target;
                return true;
            };
            eleDrags.ondragend = function(ev) {
                /*拖拽结束*/
                ev.dataTransfer.clearData("text");
                eleDrag = null;
                return false
            };
            eleDustbin.ondragover = function(ev) {
                /*拖拽元素在目标元素头上移动的时候*/
                ev.preventDefault();
                return true;
            };
    
            eleDustbin.ondragenter = function(ev) {
                /*拖拽元素进入目标元素头上的时候*/
                this.style.color = "#ffffff";
                return true;
            };
            eleDustbin.ondrop = function(ev) {
                /*拖拽元素进入目标元素头上,同时鼠标松开的时候*/
                if (eleDrag) {
                    eleRemind.innerHTML = '<strong>"' + eleDrag.innerHTML + '"</strong>被扔进了垃圾箱';
                    eleDrag.parentNode.removeChild(eleDrag);
                }
                this.style.color = "#000000";
                return false;
            };     
        </script>  
    </body>            
    </html>



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  • 原文地址:https://www.cnblogs.com/xutongbao/p/9924880.html
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