通用类的调用什么时候需要NEW,什么时候不用???
public class DataBaseDB
{
public static String ConnectionString = ConfigurationSettings.AppSettings["SQLCONNECTIONSTRING"];
}
public class PreviewNewsDetails
{
public String Title = ""; ///新闻的标题
public String Body = ""; ///新闻的内容
}
DataBaseDB.ConnectionString这样也可以调用,但什么时候用PreviewNewsDetails aa=new PreviewNewsDetails();aa.Title();这种方式呀???