wx.uploadFile({ //上传文件的接口;

    url: ‘ft1.ai.zhaoonline.com/images/recognize’, //仅为示例，非真实的接口地址

    filePath: arr[0],

    name: ‘file’,

    success: function (res) {

    var data = res.data

    //do something

    }

})

看到这篇帖子

http://developers.weixin.qq.com/blogdetail?action=get_post_info&lang=zh_CN&token=&docid=2680dbfdb69f361265fec24537dccf37

我下载的官网最低版本，也不行