Java有两个线程都循环输出1-10，启动这两个线程后，使得输出112233.....

利用Java线程工具类LockSupport

LockSupport.pack()//阻塞当前线程

LockSupport.unpack()//指定线程解除阻塞

解答如下

        static Thread t1, t2;
        public static void main(String[] args) {
            t1 = new Thread(() -> {
                for (int i = 1; i <= 10; i++) {
                    System.out.println(i);
                    LockSupport.unpark(t2);
                    LockSupport.park();
                }
            });
            t2 = new Thread(() -> {
                for (int i = 1; i <= 10; i++) {
                    LockSupport.park();
                    System.out.println(i);
                    LockSupport.unpark(t1);
                }
            });
            t1.start();
            t2.start();
        }