ConfigurationManager类读取配置文件链接字符串

<?xml version="1.0" encoding="utf-8" ?>

<configuration>
 <appSettings>
  <add key="strConn" value="server=192.168.50.33;user=sa;pwd=world01ympic;database=PictureManage"/>

 </appSettings>

</configuration>

 

然后在访问数据的类中进行访问(不过记得添加引用，system.configuration)

 string strcon  = System.Configuration.ConfigurationManager.AppSettings["strConn"].ToString();