图12展示一个信用卡号的值如何流经应用程序。
Figure 12 shows how the value of a credit card number flows through the application.
您可以在Optim的基础函数中进行选择(例如substring)，或使用用于屏蔽信用卡号的更复杂算法。
You can pick from the base functions within Optim (SUBSTRING, for example), or you can use the algorithms for more complex masking of credit card Numbers.
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