diff --git a/src/EngineEntrance.js b/src/EngineEntrance.js
index 82085f6..048d473 100644
--- a/src/EngineEntrance.js
+++ b/src/EngineEntrance.js
@@ -62,7 +62,7 @@ export default class MessageEntrance extends Emiter {
   constructor() {
     super();
     //sdk 信息
-    GlobalConfig.sdkVersion = "v2.9.0.20170918";
+    GlobalConfig.sdkVersion = "v2.9.3.20170919";
     loger.warn("sdkVersion:" + GlobalConfig.sdkVersion);
 
     //设置
@@ -1093,7 +1093,8 @@ export default class MessageEntrance extends Emiter {
   // MCU 课堂成功
   _mcuJoinMCUClassSuccessHandler(_data) {
     //loger.log('MCU 课堂成功.');
-    loger.warn('=====================STEP9=======================');;
+    loger.warn('=====================STEP9=======================');
+    //console.log("当前课堂人员列表",GlobalConfig.rosterNumber,GlobalConfig.rosters)
     GlobalConfig.setCurrentStatus(GlobalConfig.statusCode_2);
     GlobalConfig.classJoinSuccess = true;
 
diff --git a/src/SystemConfig.js b/src/SystemConfig.js
index 6fa0150..2f69a91 100644
--- a/src/SystemConfig.js
+++ b/src/SystemConfig.js
@@ -216,7 +216,7 @@ class SystemConfig {
           if (ua.match(/safari/i) == "safari") {
             Sys.explorer = "safari"
             loger.log("safari", Sys);
-            alert(JSON.stringify(Sys));
+            loger.log(JSON.stringify(Sys));
           }
         }
       }
diff --git a/src/apes/ConferApe.js b/src/apes/ConferApe.js
index f295c6e..969de87 100644
--- a/src/apes/ConferApe.js
+++ b/src/apes/ConferApe.js
@@ -626,6 +626,7 @@ class ConferApe extends Ape {
     loger.log('课堂模块初始完成->当前课堂状态:'+ GlobalConfig.classStatus,"recordStatus:"+GlobalConfig.recordStatus);
     this.rosters={};
     this.rosterLen=0;
+    GlobalConfig.rosterNumber=this.rosterLen;
     GlobalConfig.rosters=this.rosters;
 
     this.timerCounter.addTimerCallBack(this.timerCounterUptate.bind(this), 1);
diff --git a/src/apes/DocApe.js b/src/apes/DocApe.js
index daf5a08..7bae4d0 100644
--- a/src/apes/DocApe.js
+++ b/src/apes/DocApe.js
@@ -498,6 +498,7 @@ class DocApe extends Ape {
     docDataModel.curV = parseInt(paramInfo.curV) || 0;//垂直方向的滚动条进度百分比 0-100
     docDataModel.curH = parseInt(paramInfo.curH) || 0;//水平方向的滚动条进度百分比 0-100
     docDataModel.scale = parseInt(paramInfo.scale) || 100;//文档缩放百分比 0-100
+    docDataModel.isFullScreen=Boolean(paramInfo.isFullScreen)||false;//是否全屏显示文档区域
     this.updaterDoc(docDataModel, docDataModel.itemIdx);
   }
 
@@ -744,6 +745,7 @@ class DocApe extends Ape {
     docModelPdu.curV = parseInt(_param.curV) || 0;
     docModelPdu.curH = parseInt(_param.curH) || 0;
     docModelPdu.scale = _param.scale || 100;//按百分比
+    docModelPdu.isFullScreen=Boolean(_param.isFullScreen)||false;//是否全屏显示文档区域
     docModelPdu.visible = _param.visible || false;
     docModelPdu.action = _param.action || ApeConsts.DOC_ACTION_NORMAL;//0，无操作， 1翻页、2.显示/隐藏, 3缩放/滚动
     docModelPdu.docId = _param.docId || "";//文档在服务器数据库中的唯一id,必须有
diff --git a/src/pdus/pro.js b/src/pdus/pro.js
index 7e40ccb..d2e1048 100644
--- a/src/pdus/pro.js
+++ b/src/pdus/pro.js
@@ -742,6 +742,7 @@ message RCDocSendDataModelPdu {
     optional string md5=18;//md5
     optional uint32 show_type=19;//文档显示模式
     optional uint32 animation_step=20 [default =1];//当前页码的动画步数
+    optional bool isFullScreen=21 ;//是否全屏显示
 
 }