class Main {
pu
jidongche("xx1234"，150，100);jdc1.getjianspeed(30);
jdc1.setchepaihap("辽B5086")；System.out.println(有参构造方法将车牌号改为："+jdc1.getChepaihao()+”速度减为："+jdc1.getSpeed())；
System.out.println("该车辆的载重量为："+jdc1.getWeight());

}