参考了前面的兄弟的答案，改了一丢丢 import java.util.Scanner; import java.util.ArrayList; import java.util.List; import java.util.Scanner; import java.util.concurrent.CountDownLatch; import java.util.concurrent.atomic.AtomicInteger; import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.Lock;...