更改
/* PYNQ实验步骤 */
（准备：手机耳机1条；）
[https://github.com/Xilinx/PYNQ/blobtree/master/boards/Pynq-Z1Z2/notebooks/examples/audio_playback6_base_overlay_audio.ipynb Pynq Audio]
*Pynq USB_WebCam/OpenCV_Filters_WebCam（2小时）
（准备：罗技CL270摄像头1个；HDMI显示器1台；HDMI线2条）
[https://github.com/Xilinx/PYNQ/blob/master/boards/Pynq-Z1/notebooks/examples/usb_webcam.ipynb USB_WebCam] [https://github.com/Xilinx/PYNQ/blob/master/Pynq-Z1base/notebooks/examplesvideo/opencv_filters_webcamopencv_face_detect_webcam.ipynb OpenCV_Filters_WebCamopencv_face_detect_webcam]
[https://github.com/Xilinx/PYNQ/tree/master/boards/Pynq-Z2/base/notebooks/video/opencv_filters_webcam.ipynb OpenCV_Filters_WebCam]
=具体流程2=
