/// <summary>
/// 保存用户
/// </summary>
/// <param name="user"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task <IdentityResult> CreateAsync(SysUser user, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
await _db.AddAsync(user);
await _db.SaveChangesAsync(cancellationToken);
return(IdentityResult.Success);
}