SEM
2017-01-03 00:18:57 0 举报
SEM（搜索引擎营销）是一种通过提高网站在搜索引擎结果页面（SERP）上的可见性来吸引潜在客户的策略。它包括关键词广告、内容优化、链接建设和本地搜索优化等多种方法。通过精确定位目标受众，SEM可以帮助企业提高品牌知名度、增加网站流量和销售额。与传统的广播和电视广告相比，SEM具有更高的投资回报率和更好的可衡量性。总之，SEM是一种有效的在线营销策略，可以帮助企业在竞争激烈的市场中脱颖而出。
作者其他创作
大纲/内容
ManageEnvironment Information
has
Data persistence layer
Decision Making
Control layer
ReceiveSocket
- ChatWindow window;- ServerSocket receiveSocket;- Socket peerSendSocket-BufferedReader br
+ run():void
Environment Manager
extends
《Server》System ApplicationServer
《server》Web Server
SendSocket
-Socket sendSocket;-BufferedWriter bw;
+ sendMessage(String message):void - colseSocketStream():void
View the Environment Information
Dependence is strengthened
Dependence is weakened
Vistor
ChatWindow
-GUIComponents-……-SendSocket sendSocket;-ReceiveSocket receiveSocket;
+ flushChatLog(String ms):void+ setLocalPorText(int port):void- actionInit():void- guiInit():void
《database》Environment InformationDataBase
Model layer
Sustainable EnvironmentSystem
View layer
Remote Sensing
Visoters
Thread
Web Browser
Limited communication
Database layer
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