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using System;
namespace iuhxq
{
public abstract class DataProvider
{
public abstract string GetDataProvider();
}
public class OleDbDataProvider : DataProvider
{
public override string GetDataProvider()
{
return 'OleDbDataProvider';
}
}
public class SqlDataProvider : DataProvider
{
public override string GetDataProvider()
{
return 'SqlDataProvider';
}
}
public class DataProviderFactory
{
public static DataProvider GetDataProvider(string ProviderType)
{
if (ProviderType.ToLower() == 'oledbdataprovider')
{
return new OleDbDataProvider();
}
else
{
return new SqlDataProvider();
}
}
}
public class Factory
{
public static void Main()
{
Console.WriteLine(DataProviderFactory.GetDataProvider('OleDbDataProvider').GetDataProvider());
}
}
}