上一篇的博客已经将图片存入到百度云与自己的服务器阿里云上面了，接下来就是在写一个页面，是刷脸页面，通过这个页面你将自己的脸拍照，传入到自己的服务器上，去与存入百度云上面的照片进行对比。下面是代码。

前台代码：

camera device-position="front" flash="off" binderror="error" style="width: 100%; height: 300px;"/cameraview class="weui-cell weui-cell_switch"                view class="weui-cell__ft"                     switch checked bindchange="switch1Change" /                 /view            /viewbutton type="primary" bindtap="takePhoto"刷脸登录/button

 data: {    // switch1Change:true    path:null,    status:'front'  },  switch1Change: function (e) {     if(e.detail.value){          this.setData({status:'back'})     }else{          this.setData({status:'front'})     }  },  takePhoto() {    const ctx = wx.createCameraContext()    ctx.takePhoto({      quality: 'high',      success: (res) = {        this.setData({          src: res.tempImagePath        })        wx.uploadFile({          url: 'http://www.anweimin.top/miniprgram-php/server/index.php/home/index/login',          filePath: this.data.src,          name: 'file',          success: (res) = {            var data = res.data;            console.log(data);          }        })      }    })  },

后台代码，这个方法是将你刷脸是拍的照片上传到服务器上与百度云对比，并返回数据，返回的数据中，其中一个是两张照片的相似度，相似度在百分之九十五以上，则是本人，

public function login(){        //上传文件路径       $dir ="./Upload/temp/";       if(!file_exists($dir)){           mkdir($dir,0777,true);       }        $upload = new ThinkUpload();// 实例化上传类        $upload-maxSize = 2048000 ;// 设置附件上传大小        $upload-exts = array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型        $upload-rootPath = $dir; // 设置附件上传根目录        $upload-savePath = ''; // 设置附件上传（子）目录        //阻止建文件夹        $upload-autoSub = false;        // 上传文件        $info =$upload-uploadOne($_FILES['file']);        if(!$info){           //上传错误提示信息             echo json_encode(array('error'=true,'msg'=$uplaod-getError()),JSON_UNESCAPED_UNICODE);        }else{//上传成功             // $this-success('上传成功');             $file=$dir.$info['savepath'].$info['savename'];             $image=base64_encode(file_get_contents($file));             $client=$this-init_face();             $options['liveness_control']='NORMAL';             $options['max_user_num']='1';             $ret=$client-search($image,'BASE64','pingjiao',$options);             echo json_encode($ret,JSON_UNESCAPED_UNICODE);             if($ret['error_code']==0){                      $user=$ret['result']['user_list']['0'];                    $no=$user['user_id'];                    $score=$user['score'];                    if(!empty($no)){                         $data=M('student')-field('no,name,sex')-where("no={$no}")-find();                         if($data){                             $data['score']=$score;                         }                    }             }        }  }