Created 腾讯云通信登录 (markdown)

+
+```
+1. 发送请求
+http://192.168.0.100:8788/home/sign?identifier=7 （identifier是用户id）
+
+2. 在返回的Json信息中获取urlSig
+ {
+    errMessage = "";
+    expireTime = 0;
+    initTime = 0;
+    urlSig = "eJxNkEtvgzAQhP*Lz1WLXyGulAPpI6KhSVOoUHuxCLbRFkEcMFWiqv89gIjUve3MzjfS-qIkim9bVcrMWlDoHmHm9cMo5*hmNPXJQqNlZpxuBp9zTvqLyR1jMnOSNkP6Kjuo9Ajj3Pcoo2zSQenagYER5V8ZeX7oaifd2ep-jBaKfnt92j2Ey50Q7-5jflrOWQhf*83LJkhVQsqOCHNerUnxNlOdnVW8CiCoton63pa4BBYdXVtEdybVeL7-iEUAKxP74hiy9Sd*TovFYir70U0Lh7ovJB7mmNDhCx76uwCbqVSq";    
+}
+
+3. 设置TIMLoginParam
+以下以IOS代码为例
+#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;
+
+4. 利用TIMManager进行登录操作
+```