今天改进跌倒检测模块的main部分，使其可以通过摄像头实时监测importtimefromcollectionsimportdequeimportrequestsimportcv2importnumpyasnpimportmediapipeasmpfromstgcn.stgcnimportSTGCNfromPILimportImage,ImageDraw,ImageFontmp_drawing=mp