json内容如下：
[{"ZtdID":"100000","ZtdNo":"001 ","ZtdName":"1号店 ","Address":"XX市ZZ区YY路01号铺 ","Remark":"","AreaID":"01","ZtdTel":"0000-8888888","ZtdContact":"张三"},{"ZtdID":"100001","ZtdNo":"002 ","ZtdName":"1号店 ","Address":"XX市ZZ区YY路01号铺 ","Remark":"","AreaID":"01","ZtdTel":"0000-8888888","ZtdContact":"李三"}]
json解析并输出excel
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先格式化成数组，然后可以用一些生成excel的类来生成，比如http://code.google.com/p/php-excel/
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phpexcel 或者其他一些轻量级的插件 生成excel
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先把json转回成数据，json_decode
再生成excel，把数组中的输入放入