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怎么能同时识别3个不同颜色的色块，并以123的形式串口通信到2560上面
红色色块们=find_blobs(红色阈值) 绿色色块们=find_blobs(绿色阈值) 黄色色块们=find_blobs(黄色阈值) if 红色色块们: uart.write(“1”) if 绿色色块们: uart.write(“2”) if 黄色色块们: uart.write(“3”)