保留的预测层				${AP}_{50}^{val}$	${AP}_{50}^{test}$	${mAP}^{val}$	${mAP}^{test}$	计算量 GFLOPs
P2	P3	P4	P5	${AP}_{50}^{val}$	${AP}_{50}^{test}$	${mAP}^{val}$	${mAP}^{test}$	计算量 GFLOPs
	√	√		34.89	28.93	19.33	15.37	14.6
	√	√	√	34.18	28.83	18.84	15.42	16.0
√	√	√		39.15	31.02	21.87	16.45	17.5
√	√	√	√	38.05	29.08	21.22	15.96	18.9