说明：  本实验设计了一个《导弹打飞机》的动画演示程序。建立地面坐标系，横轴x代表水平射程，纵轴y代表垂直高度，单位均为km。假设导弹的初始位置为(0，0)，飞机的初始位置为(20，0)，飞机在20km高度以1km/s的速度做水平匀速直线运动，导弹从地面发射，以2km/s的速度做等速运动，以追踪法对飞机进行打击，即导弹的速度方向始终沿着弹目视线且指向目标。
(The experimental design was a " missile hit the aircraft," the animated demo. Establishment of ground coordinates, the horizontal axis x represents the level range, representative of the vertical height of the vertical axis y, units are km. Assuming the missile' s initial position is (0,0), the aircraft' s initial position (20.0), aircraft altitude at the 20km to 1km/s speed to do the level of uniform linear motion, the missile launched from the ground to 2km/s constant speed of movement to do in order to track the method of combat aircraft, the missile' s velocity is always along the direction of line of sight and the target missile to the target.)