<script>
draw = "<div><table><tbody>"
recv = {"张三": ["89", "63", "78", "77"], "李四": ["99", "75", "98", "97"]}
obj =JSON.parse(recv)
for (i in obj){
draw += "<tr>" + "<td>" + vdata[i][0] + "</td>" + "<td>" + vdata[i][1] + "</td>" + "<td>" + vdata[i][2] + "</td>" + "</tr>";
}
draw += "</tbody></table></div>"
</script>
<body>
document.write(draw)
</body>
想通过服务器返回的JSON数据,遍历后得到一个表格。但是这个循环得到的结果不正确,想问问是什么地方出错了?