Such as topic, a lot of people by write a small program to simulate, practical and prove that the result is lost, because the original server each put out the single and double size is determined by how many people this bet, banker can't compensate, so to get the server data is not reality, such as 5 minutes drive time, but not to 4.00 minutes, the lottery is 3.59 points, waiting for you to take the data to also can not afford time to bet, how much is the only way to grab this bet, fetching time must be as 30 seconds, minimum 20 seconds, or you can not afford time to bet, so how to grab the current betting is to determine the number of data it open? So how to grab the current number of bets data?