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<title>无标题文档</title>
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var a={"code":1,"list":[{"category1_id":"1","category1_name":"u9152u6c34u996eu6599","category1_intro":"u6e05u51c9u53efu53e3u7684u9152u6c34u996eu6599","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389343628.jpg"},{"category1_id":"2","category1_name":"u7c73u9762u7caeu6cb9","category1_intro":"u5bb6u5eadu5fc5u5907","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389343865.jpg"},{"category1_id":"3","category1_name":"u7f8eu5bb9u6d17u62a4","category1_intro":"u62a4u80a4u5fc5u5907","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389343935.jpg"},{"category1_id":"4","category1_name":"u6e05u6d01u6d17u6da4","category1_intro":"u7ed9u60a8u4e00u4e2au5e72u51c0u7684u751fu6d3bu73afu5883","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389343986.jpg"},{"category1_id":"5","category1_name":"u751fu6d3bu7528u54c1","category1_intro":"u5bb6u5eadu5fc5u5907","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389344445.jpg"},{"category1_id":"6","category1_name":"u4f11u95f2u98dfu54c1","category1_intro":"u597du5403u7f8eu5473","category1_images":"http://www.songcuomen.com/attachments/productType/2014-01/10/21_1389344494.jpg"}]};
var y=1;//表示页数
var t=2;//表示每页现实几条数据
var z=a["list"].length;
var zy= Math.ceil(z/t);
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if(y==1 && f==-1)
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alert(已经是第一页了);
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alert(已经是最后一页了);
f=0;
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var q=(y-1)*2;//页数-1 乘以每页现实多少条 结果为 本页从第几条开始
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<body>
<table border="1" id="table">
<thead>
<tr><td>category1_id</td><td>category1_name</td><td>category1_intro</td><td>category1_images</td></tr>
</thead>
<tbody>
</tbody>
</table>
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