Updated 远程教学相关文档 (markdown)

@@ -4,6 +4,29 @@
 老师端的教学动作和学生端的学习动作都会产生相应的消息通知给相应的客户端。
 ```
 
+### 关于登录
+
+```
+http://192.168.0.100:8788/home/sign?identifier=7
+
+ {
+    errMessage = "";
+    expireTime = 0;
+    initTime = 0;
+    urlSig = "eJxNkEtvgzAQhP*Lz1WLXyGulAPpI6KhSVOoUHuxCLbRFkEcMFWiqv89gIjUve3MzjfS-qIkim9bVcrMWlDoHmHm9cMo5*hmNPXJQqNlZpxuBp9zTvqLyR1jMnOSNkP6Kjuo9Ajj3Pcoo2zSQenagYER5V8ZeX7oaifd2ep-jBaKfnt92j2Ey50Q7-5jflrOWQhf*83LJkhVQsqOCHNerUnxNlOdnVW8CiCoton63pa4BBYdXVtEdybVeL7-iEUAKxP74hiy9Sd*TovFYir70U0Lh7ovJB7mmNDhCx76uwCbqVSq";    
+}
+
+#define TIMAppid 1400004355
+#define TIMAppidString @"1400004355"
+#define TIMAccountType @"2243"
+
+ TIMLoginParam *param = [[TIMLoginParam alloc] init];
+ param.userSig = sig;
+ param.identifier = identifier;
+ param.sdkAppId = TIMAppid;
+ param.appidAt3rd = TIMAppidString;
+ param.accountType = TIMAccountType;
+```
 ## 消息定义
 
 采用Json格式发送命令信息