1.修改MCU的选点测速逻辑，如果测速失败，会从已有的列表中安顺序连接，不再随机选择

@@ -58,7 +58,7 @@ export default class MessageEntrance extends Emiter {
   constructor() {
     super();
     //sdk 信息
-    GlobalConfig.sdkVersion = "v1.74.0.20170814";
+    GlobalConfig.sdkVersion = "v1.75.0.20170815";
     loger.warn("sdkVersion:" + GlobalConfig.sdkVersion);
 
     //设置
@@ -1117,11 +1117,30 @@ export default class MessageEntrance extends Emiter {
         GlobalConfig.MCUServerIP = _data.ip || "";
         GlobalConfig.MCUServerPort = _data.port || "";
       } else {
-        //随机选择一个
         if (GlobalConfig.mcuListFinal && GlobalConfig.mcuListFinal.length > 0) {
-          let index = parseInt(Math.random() * GlobalConfig.mcuListFinal.length);
-          GlobalConfig.MCUServerIP = GlobalConfig.mcuListFinal[index].ip || "";
-          GlobalConfig.MCUServerPort = GlobalConfig.mcuListFinal[index].port || "";
+          //如果当前没有设置过mcu的ip和端口随机选择一个
+          if(!GlobalConfig.MCUServerIP||GlobalConfig.mcuListFinal.length==1){
+            let index = parseInt(Math.random() * GlobalConfig.mcuListFinal.length);
+            GlobalConfig.MCUServerIP = GlobalConfig.mcuListFinal[index].ip || "";
+            GlobalConfig.MCUServerPort = GlobalConfig.mcuListFinal[index].port || "";
+          }else {
+            //当前mcu已经有值，需要选择一个新的
+            for(let i=0;i<GlobalConfig.mcuListFinal.length;i++){
+              if(GlobalConfig.MCUServerIP == GlobalConfig.mcuListFinal[i].ip){
+                //获取下一个MCU
+                let nextMcu= GlobalConfig.mcuListFinal[i+1];
+                if(!nextMcu){
+                  //如果下一个mcu不存在就使用第一个
+                  nextMcu=GlobalConfig.mcuListFinal[0];
+                }
+                if(nextMcu){
+                  GlobalConfig.MCUServerIP = nextMcu.ip || "";
+                  GlobalConfig.MCUServerPort = nextMcu.port || "";
+                }
+                break;
+              }
+            }
+          }
         }
       }
       if (oldIp && oldIp != GlobalConfig.MCUServerIP) {

@@ -814,7 +814,7 @@ class ConferApe extends Ape {
     thirdMessage.toNodeID = thirdBroadcastReceivePdu.peer;
     //loger.log("监听第三方消息通道消息->1", thirdMessage);
     thirdMessage.message = this._rCArrayBufferUtil.uint8ArrayToStr(thirdBroadcastReceivePdu.message, 2);
-    loger.log("监听第三方消息通道消息->", thirdMessage);
+    loger.log("收到第三方消息通道消息->", thirdMessage);
     this._emit(MessageTypes.RECEIVE_THIRD_MESSGAE, thirdMessage);
     if (this.thirdMessage) {
       this.thirdMessage.sendMessageToParent(thirdMessage.message);