在考虑空气阻力与浮力的情况下通过数值求解的方法研究了物体斜抛运动的规律，包括射程随出射角的关系、最优出射角随初速度的关系，另外研究了运动最大高度及运动时间随出射角变化的规律.

Considering air resistance and buoyancy, the law of slant motion of the object is studied by numerical solution, including the relationship between range and projecting angle, the relationship between the optimal projecting angle. In addition, the relationship between projecting angle and maximum motion height as well as motion time are also studied.