我在控制臺應用程序中有以下代碼。LookUpUser方法被調用，而PostAsJsonAsync被調用，但是響應檢查中的斷點此后不會被命中。我在此實現中做錯了什么？static void Main(string[] args){    TestUseCase().GetAwaiter().GetResult();}private static async Task TestUseCase(){    await GetUserGuids();}private static async Task GetUserGuids(){    var userGuids = new List<Guid>();    userGuids.Add(Guid.Parse("7b5cf09c-196c-4e0b-a0e2-0683e4f11213"));    userGuids.Add(Guid.Parse("3a636154-b7fc-4d96-9cd1-d806119ff79f"));    userGuids.ForEach(async x => await LookUpUser(x));}private static async Task LookUpUser(Guid adUserGuid){    var client = new HttpClientManager().GetHttpClient();    var response = await client.PostAsJsonAsync("api/v1/users/search", new { ADUserGuid = adUserGuid });    if (response.IsSuccessStatusCode)    {        var groups = await response.Content.ReadAsAsync<List<User>>();    }    else //not 200    {        var message = await response.Content.ReadAsStringAsync();    }}