转：打开Web.Config在 <configuration> 后面添加：

打开Web.Config在 <configuration> 后面添加： 

<appSettings> 
                <add   key= "ConnectionString "   value= "你的连接字符串 "   /> 
</appSettings> 


在程序中获取： 
string   connectionString   =   ConfigurationSettings.AppSettings[ "ConnectionString "];