public async Task AddUser()
{
//注意:不要使用自增字段，使用自增字段相当于要先持久化才能获取到Id，实际上是破坏了聚合的完整性。
var user = new User(Guid.NewGuid(), "This is user name",
DateTime.UtcNow.Hour, Gender.Female, "CN", "GuangDong", "GuangZhou", "YueXiu");
await _userDomainService.AddUser(user);
}
public async Task AddUser()
{
await _userDomainService.AddUser();
}
