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您好，请问如果做一个推小球的车，把多个红色正方体推进红色区域这种，如果不写先找大物块的程序就会同时检测到很多个物块，写了的话就会优先去检测红色的区域，而不是先找正方体然后发坐标，这种情况程序要怎么样才能避免啊
有没有具体的图片？