A.[1,2,3]
B.[3,2,1]
C.运算错误
D.输入的不是列表
A.反转图中所有边的方向
B.按照设定条件取出子图
C.取两个图的公共顶点和边作为新图,并保持前一个图顶点与边的属性
D.合并边相同的属性
A.public class X implements Runnable{ public void run(){......} }
B.public class X implements Thread{ public void run(){......} }
C.public class X implements Thread{ public int run(){......} }
D.public class X implements Runnable{ protected void run(){......} }
A.public class X impl ements Runable{ public void run() .....} }
B.public class X implements Thread{ public void run() ...... }
C.public class X implements Thread{ public int run)...... }
D.public class X implements Runable{ protected void run 0......} }