通过  wx.joinVoIPChat API调用成员后， 第一个加入的成员可以正常显示， 第二个成员能显示出黑色占位框，有声音，但不能显示画面，如果占击分享后返回，则可以刷新 出画面 加入时界面 [图片] 点击邀请后界面 [图片] 源码： wxml   <view class="view_room" wx:if="{{m1.indexOf(openIdList, cid) > -1}}">     <block wx:for="{{openIdList}}" wx:key="*this">       <voip-room openid="{{item}}" mode="{{selfOpenId === item ? 'camera' : 'video'}}"></voip-room>     </block>     <block wx:for="{{blankview}}" wx:key="*this">       <view class="view_yq">         <view>+ 邀请</view>         <button open-type="share" title="邀请"></button>       </view>     </block>   </view>   <view class="room_esc" wx:else>     房间已经被解散！   </view> <view style="display:none;color:#fff">   {{openIdList.length}} - {{joinVoIPChat}}   <view>{{openIdList}}</view>   <view>signature:{{signature}}</view>   <view>nonceStr:{{nonceStr}}</view>   <view>timeStamp:{{timeStamp}}</view>   <view>groupId:{{groupId}}</view>   <view>cid:{{cid}}</view>   <view>selfOpenId:{{selfOpenId}}</view>   <view>session_key:{{session_key}}</view> </view> <view style="height:60px;"></view> <view class="room_menu">   <view bindtap="goMuteConfig" data-v="muteMicrophone"><text class="fal fa-microphone{{room_menu[1]}}"></text>{{room_menu[0]}}</view>   <view bindtap="goMuteConfig" data-v="muteEarphone"><text class="fal fa-volume{{room_menu[4]}}"></text>{{room_menu[3]}}</view>   <navigator bindtap="goExit" wx:if="{{selfOpenId == cid}}"><text class="fal fa-power-off"></text>结束面试</navigator>   <navigator target="miniProgram" open-type="exit" wx:else><text class="fal fa-power-off"></text>退出面试</navigator> </view> <wxs module="m1">   function defineIndexOf(str, val) {     return str.indexOf(val);   }   module.exports = {     indexOf: defineIndexOf   } </wxs> js const app = getApp() Page({   /**    * 页面的初始数据    */   data: {     groupId : '',     joinVoIPChat:'0',     openIdList:[],     blankview: ['','','',''],     room_menu:['开启话筒', '', false, '开启声音', '', false],     yq_img:''   },   /**    * 生命周期函数--监听页面加载    */   onLoad: function (options) {     this.setData({       selfOpenId: app.globalData.openid,       session_key: app.globalData.session_key,       cid: ( options.cid != '' && options.cid != undefined ) ? options.cid : app.globalData.openid,     })     wx.showLoading({mask: false })   },   /**    * 生命周期函数--监听页面显示    */   onShow: function () {     var _this =this;     //设置是否保持常亮状态。仅在当前小程序生效，离开小程序后设置失效     wx.setKeepScreenOn({       keepScreenOn: true     })     wx.request({       url: app.api_url + 'Room/index/' + app.globalData.openid + '/' + app.globalData.userid,       data: {openid:_this.data.cid, session_key:app.globalData.session_key},       header: { 'content-type': 'application/x-www-form-urlencoded' },       method: 'POST',       success(res) {         _this.setData(res.data)         //加入 (创建) 实时语音通话         wx.joinVoIPChat({           signature:  res.data.signature,           nonceStr:   res.data.nonceStr,           timeStamp:  res.data.timeStamp,           groupId:    res.data.groupId,           roomType:   'video',           success(res){             console.log(res)             _this.setData({               openIdList: res.openIdList,               blankview: Array.apply(null,{length: (4 - res.openIdList.length) })              })             wx.hideLoading();           },           fail(res){             _this.setData({               joinVoIPChat:'fail' + res.errCode + res.errMsg             })           }         })         //订阅视频画面成员。对于视频房间，当成员超过两人时需进行订阅，否则只能看到最先加入房间的两人画面。         wx.subscribeVoIPVideoMembers({           openIdList: _this.data.openIdList,           success(res){             console.log('subscribeVoIPVideoMembers success')           }         })         //监听实时语音通话成员在线状态变化事件。有成员加入/退出通话时触发回调         wx.onVoIPChatMembersChanged(function(res){           _this.setData({             openIdList: res.openIdList,              blankview: Array.apply(null,{length: (4 - res.openIdList.length) })            })           //订阅视频画面成员。对于视频房间，当成员超过两人时需进行订阅，否则只能看到最先加入房间的两人画面。           wx.subscribeVoIPVideoMembers({             openIdList: _this.data.openIdList,             success(res){               console.log('subscribeVoIPVideoMembers success_b')             }           })         })       }     })     setInterval(function(){_this.onShow;console.log('setInterval 10')}, 10000);   },   goMuteConfig:function(e){     if( e.currentTarget.dataset.v == 'muteMicrophone' ){       if( this.data.room_menu[1] == '' ){         this.setData({room_menu: ['关闭话筒', '-slash', true, this.data.room_menu[3], this.data.room_menu[4], this.data.room_menu[5]]})       }else{         this.setData({room_menu: ['开启话筒', '', false, this.data.room_menu[3], this.data.room_menu[4], this.data.room_menu[5]]})       }     }else{       if( this.data.room_menu[4] == '' ){         this.setData({room_menu: [this.data.room_menu[0], this.data.room_menu[1], this.data.room_menu[2],'关闭声音', '-slash', true]})       }else{         this.setData({room_menu: [this.data.room_menu[0], this.data.room_menu[1], this.data.room_menu[2],'开启声音', '', false]})       }     }     wx.updateVoIPChatMuteConfig({       muteConfig:{         muteMicrophone: this.data.room_menu[2],         muteEarphone: this.data.room_menu[5]       }     })   },   goExit:function(){     wx.exitVoIPChat();     // wx.redirectTo({url: 'index'})     wx.navigateBack({delta:1})   },      /**    * 生命周期函数--监听页面卸载    */   onUnload: function () {     wx.exitVoIPChat();   },      /**    * 用户点击右上角分享    */   onShareAppMessage: function () {     var _this = this     return {       title: '邀请您加入远程面试',       path: '/pages/call/share?cid=' + app.globalData.openid,       imageUrl: _this.data.yq_img,       success: function (res) {         console.log('转发成功' + app.globalData.openid)       }     }   } })