<!DOCTYPE
HTML>
<html>
<head>
<script
src="jquery-1.9.1.js"></script>
<meta
charset="utf-8">
<meta
charset="utf-8">
<style>
p{
display:
table;
border: 1px
solid;
width:
482px;
height:
100px;
}
div{
border: 1px solid;
width: 482px;
height: 60px;
}
input{
margin-top: 10px;
width:40px;
height: 40px;
}
span{
/*font-size:
30px;*/
/*line-height:
100px;*/
text-align:
center;
display:
table-cell;
border:
1px solid;
width:
100px;
height:
98px;
word-wrap:
break-word;
vertical-align: middle;
}
</style>
</head>
<body>
<p><span
class="number">请拖动数字放在这里</span><span>+</span><span
class="number">还有这里</span><span>=</span><span
id="result">结果</span></p>
<div>
<input type="button"
value="1" draggable="true">
<input type="button" value="2" draggable="true">
<input type="button" value="3"
draggable="true">
<input
type="button" value="4" draggable="true">
<input type="button" value="5"
draggable="true">
<input
type="button" value="6" draggable="true">
<input type="button" value="7"
draggable="true">
<input
type="button" value="8" draggable="true">
<input type="button" value="9"
draggable="true">
<button
id="reset">重置</button>
</div>
<script>
$("input").on("dragstart",function(evt){
event.dataTransfer.setData("inputV",$(this).val());
})
$(".number").on("dragover",function(evt){
event.preventDefault();
})
$(".number").on("drop",function(){
var data =
event.dataTransfer.getData("inputV"),
$result =
$("#result");
$(this).text(data);
var
num1 = $(".number:eq(0)").text(),
num2 = $(".number:eq(1)").text();
if(!isNaN(num1) && !isNaN(num2))
{
$result.text(parseInt(num1) + parseInt(num2));
}else{
$result.text("未知结果!")
}
})
$("#reset").on("click",function(){
window.location.reload();
})
</script>
</body>
</html>
原文：http://www.cnblogs.com/huruqing/p/3638279.html