public void BatchInsertTest()
{
var total = 200;
var context = _dbContextFactory.Create <FakeEcDbContext>();
var fakeUserRepo = new FakeUserRepository(_dbContextFactory);
var sw = new Stopwatch();
sw.Start();
var users = CreateOneUser(total);
var time1 = sw.ElapsedMilliseconds;
sw.Restart();
fakeUserRepo.InsertRange(users);
context.SaveChanges();
sw.Stop();
context.Dispose();
Trace.WriteLine("Create FakeUser " + total + ", 毫秒：" + sw.ElapsedMilliseconds);
Trace.WriteLine("Batch Insert " + total + ", 毫秒：" + sw.ElapsedMilliseconds);
}