摘要：
public interface Wuqi { public String useWuqi(); } public class Jian implements Wuqi{ @Override public String useWuqi() { return "用剑"; } } public clas 阅读全文
摘要：
//源类 public class Chazuo { public void output() { System.out.println("插座可能输出220v或者110v"); } } public interface Adapter { public void output5v(); } pub 阅读全文