/// <summary>
/// 判断客户端是否存在
/// </summary>
/// <param name="ClientId"></param>
/// <param name="ClientSecret"></param>
/// <returns></returns>
public async Task <bool> ExistAsync(string ClientId, string ClientSecret)
{
return(await ClientDb.IsAnyAsync(t => t.ClientId == ClientId& t.ClientSecret == ClientSecret));
}
