值被最新的人覆盖以请求机器人？

import threading

class Counter:
    def __init__(self):
        self.value = 0
        self.lock = threading.Lock()

    def increment(self):
        with self.lock:
            self.value += 1

counter = Counter()

def worker():
    for _ in range(100000):
        counter.increment()

threads = [threading.Thread(target=worker) for _ in range(10)]
for thread in threads:
    thread.start()
for thread in threads:
    thread.join()

print(counter.value)  # 输出应该是 1000000

import java.util.concurrent.atomic.AtomicInteger;

public class AtomicCounter {
    private AtomicInteger value = new AtomicInteger(0);

    public void increment() {
        value.incrementAndGet();
    }

    public int getValue() {
        return value.get();
    }

    public static void main(String[] args) throws InterruptedException {
        AtomicCounter counter = new AtomicCounter();
        Runnable task = () -> {
            for (int i = 0; i < 100000; i++) {
                counter.increment();
            }
        };

        Thread[] threads = new Thread[10];
        for (int i = 0; i < threads.length; i++) {
            threads[i] = new Thread(task);
            threads[i].start();
        }

        for (Thread thread : threads) {
            thread.join();
        }

        System.out.println(counter.getValue());  // 输出应该是 1000000
    }
}

BEGIN TRANSACTION;

UPDATE accounts SET balance = balance - 100 WHERE id = 1;
UPDATE accounts SET balance = balance + 100 WHERE id = 2;

COMMIT;

import queue
import threading

q = queue.Queue()

def worker():
    while True:
        item = q.get()
        if item is None:
            break
        # 处理请求
        q.task_done()

threads = []
for i in range(4):
    t = threading.Thread(target=worker)
    t.start()
    threads.append(t)

for item in range(10):
    q.put(item)

q.join()  # 等待所有任务完成

for i in range(4):
    q.put(None)
for t in threads:
    t.join()