string strconn = ConfigurationManager.AppSettings["connStr"];是啥意思string strconn = ConfigurationManager.AppSettings["connStr"];

string strconn = ConfigurationManager.AppSettings["connStr"];是啥意思string strconn = ConfigurationManager.AppSettings["connStr"];
string strconn = ConfigurationManager.AppSettings["connStr"];是啥意思
string strconn = ConfigurationManager.AppSettings["connStr"];

string strconn = ConfigurationManager.AppSettings["connStr"];是啥意思string strconn = ConfigurationManager.AppSettings["connStr"];
“connStr”是你web.config 这个配置文件里面连接数据库的的关键字,也就是你在每个.cs页面引用这一句就可以连接数据库了