机器人精神 作业1:驾驶汽车 处理代码: Mover m; PVector force= new PVector(0, 0); void setup() { fullScreen(); m = new Mover(); } void draw() { background(255); //// Apply the friction force vector to the object. //if (m.velocity.mag() > 0) { // float c = 0.004; // PVector friction = m.velocity.get(