There are two Canfield card counting systems out there, the Canfield Expert and Canfield Master Count. The one described on this page is the expert system. The expert count is the easier of the two to learn. It is a level 1 (single-level or level-one) strategy used for counting cards. This one is also a fairly decent one to use while playing blackjack in terms of playing efficiency.

一共有两种以Canfield命名的算牌法，Canfield-I和Canfield-II，也称为Canfield Expert和Canfield Mastere。这里介绍的是Canfield-I (Canfiled Expert)，是这两种算法中比较容易学习的，属于初级算法，这也是最常见的算法之一。

As a matter of fact, the Canfield Expert count was made popular in a book called “Blackjack Your Way to Riches”, written by none other than Richard Canfield himself. The book itself was published in 1977 so it is one of the older strategies used by counters. If you are a beginner or if you are just looking for an easy system to learn, then this one is ideal. It is balanced, which means you can start your count at zero on a new deck and when the deck is completely dealt out, your count should also be zero. This is an excellent way to know how accurate your count is and if you have been doing it correctly.

事实上，是《Blackjack Your Way to Riches》这本书使得Canfield-I算法流行开来的，而这本书的作者，正式 Richard Canfiled 本人。这本书是1977年第一次发行的，所以这种算法算得上比较“古老”的那种了。但如果你是算牌初学者，或者只是想找一种简单的算牌方法，那么选择这个算法牌还是不错的。另外，这也是“平衡”算法牌，也就是说，一副牌开始的时候，这种算牌法的初始值是零，而当所有牌都发完后，你的算牌结果也应该回到零；这也是很好的检验你准确率的方法。

For some comparison, the Hi-Opt 1 Count is just a little bit better in terms of strength and with the odds. The only drawback to the Canfield expert card count is the fact that it was designed to be used while playing single deck blackjack, which is a game that is hard to come by unless you get caught up in the 6:5 blackjack scam. Richard, the inventor of this system, was once a pit boss who worked at a casino and also worked on newsletters with Bob Gates. He is now retired.

看起来Canfield-I 和另一种著名的算法——Hi-Opt-I算法——比较像，但要特别指出的是：Canfield-I是专门用于一副牌BlackJack的。

The indexes for the Canfield Expert can be found below. The list on the left side of the chart is the card value and the other list on the table is what count value that is assigned to each card.

这是Canfield-I算法的计数值分配表：

Notice that the aces count as 0. This means that the Canfield expert is not Ace-reckoned, meaning you may need to count the aces on the side in order to improve the efficiency of your odds and strategy. On a good note, you do not need to be aware of the suits on each card, which can make the count more complicated.

注意，在这里Ace的计数值是零，也就是说，Canfield-I是不统计Ace的。这也意味着，你最好另外记录一下Ace出现的次数，这应该会额外提高你的胜率。另外，这种算法不需要区分牌的花色，这会使得你的算牌更加简单。

Since this is a level I system, you only need to pay attention to just three numbers for the indices (-1,0,+1), making it an easy one to learn when you are just starting out. Now the goal is to watch the cards and keep track of the count. For example, when low cards are dealt, you start adding +1 to your running mental count and when the high cards are dealt, you subtract (-1) to your total count. The idea is to bet high when the count is high and positive and bet low when the count is low or negative. The high count corresponds to large card values such as 10s and 9s. These will benefit the player more than the dealer in terms of mathematical odds.

这只是初级算牌法，你只要使用三种计数值（-1、0、+1），这应该很容易学习上手。当小点数牌出来的时候，你应该快速地将心中的计数结果+1，而当大点数牌出现的时候就应该是-1。而当计数结果足够高（比如9或者10以上）的时候，你就应该提高你的下注额；相对的，就应该降低注额，或者不下注。因为如此高的计数结果，意味着玩家比庄家拥有更大的获胜优势。