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要用人脸识别程序，能实现对当前环境下的人脸进行计数并显示总的个数吗？
http://book.openmv.cc/example/07-Face-Detection/face-detection.html
objects = img.find_features
这个函数返回的是数组
len(objects)就是人脸的个数
直接在最后加一句len(object)就可以吗？
是objects，不是object
那就直接len(objects) 就可以？
是的，你试试就知道了。