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配置设备树: root@goembed:~# aplay -c 2 -t wav -f S16_LE -v /media/mmcblk1p1/cc.wav Playing WAVE '/media/mmcblk1p1/cc.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: ...
画图 import cv2 import numpy as np def drew(): pic = np.zeros([512, 512, 3]) #定义一个像素长宽分别为512/512,通道为3层的画布 # 直线(参数分别为:画布名称,起点坐标,终点坐标,颜色,线宽) cv2.line(pic, (256, 512), (256, 0), (255, 255,...
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ --oracle +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .1 开启归档模式 G...