1 public T GetConfigs<T>(string value,string defaultVaule)
 2         {
 3             T ret = (T)Convert.ChangeType(defaultVaule,typeof(T));
 4 
 5             try
 6             {
 7                 ret =  (T)Convert.ChangeType(ConfigurationManager.AppSettings[value.ToString()],typeof(T));
 8             }
 9             catch
10             {
11             }
12             return ret;
13         }