用VRML语言编写的机器人动画程序。点击手臂，手臂摆动；点击腿，机器人开始来回运动； 点击嘴唇，开始播放音乐；点击头，运动停止。-Use VRML develop a robot which response according to the user s action. click hand: wave hands click legs: robot move around in the scene click lips: play the fixed music click