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这是垂向力 这是水平力，没有出现垂向力的阶梯
@是嘿嘿牛啊 横坐标代表什么呢，可能是网格太疏了
@zhouxu 横坐标时间T 纵坐标力F
@是嘿嘿牛啊 感觉是网格太粗 你的数据采点更密 一个间距里采到两个一样的值 不太清楚
