Listing 4 shows the beginning of the three-finger detection in the main program loop.

清单4显示了主程序循环中的三指检测的开始部分。

youdao

At the beginning of this function, I do a little bit of feature detection.

在这个函数的开始部分，我进行了一些功能检查。

youdao

This, however, is only the beginning of the detection process.

然而，这仅仅是最初的检测过程。

youdao

This excerpt looks at the role big data is beginning to play in fraud detection for these services, and the new opportunities that development brings.

FORBES: Anti-Fraud Is Big Opportunity For Google, PayPal, Amazon