static void Main(string[] args)
{
#region 未使用简单工厂，则需要手动创建类
var result = string.Empty;
DatabaseConnection conn;
conn = new MySqConnection();
result = conn.GetDatabaseConnection();
Console.WriteLine(result);
conn = new SqlServerConnection();
result = conn.GetDatabaseConnection();
Console.WriteLine(result);
#endregion
#region 简单工厂模式写法
var factory = DatabaseSourceFactory.GetDatabaseConnection("Mysql");
result = factory.GetDatabaseConnection();
Console.WriteLine(result);
#endregion
Console.ReadKey();
}
//public static string GetDatabaseConnection(string type)
//{
// var result = string.Empty;
// DatabaseConnection conn;
// switch (type)
// {
// case "Mysql":
// conn = new MySqConnection();
// result = conn.GetDatabaseConnection();
// break;
// case "Sql Server":
// conn = new SqlServerConnection();
// result = conn.GetDatabaseConnection();
// break;
// default:
// break;
// }
// return result;
//}
public static DatabaseConnection GetDatabaseConnection(string type)
{
DatabaseConnection conn = null;
switch (type)
{
case "Mysql":
conn = new MySqConnection();
break;
case "Sql Server":
conn = new SqlServerConnection();
break;
default:
break;
}
return(conn);
}
