![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260201191728-697fa6c80495f.png\")
<\/p>\n<\/p>\n
\u5728 Java \u5e76\u53d1\u7f16\u7a0b\u4e2d，synchronized\u867d\u7136\u80fd\u89e3\u51b3\u7ebf\u7a0b\u540c\u6b65\u95ee\u9898，\u4f46\u529f\u80fd\u5355\u4e00\u3001\u7075\u6d3b\u6027\u5dee，\u9762\u5bf9\u590d\u6742\u573a\u666f（\u5982\u591a\u7ebf\u7a0b\u7b49\u5f85\u3001\u6d41\u91cf\u63a7\u5236\u3001\u6570\u636e\u4ea4\u6362）\u65f6\u529b\u4e0d\u4ece\u5fc3\u3002JDK \u63d0\u4f9b\u7684CountDownLatch\u3001CyclicBarrier\u3001Semaphore\u3001Exchanger\u56db\u5927\u5e76\u53d1\u5de5\u5177\u7c7b，\u57fa\u4e8e AQS（\u961f\u5217\u5f0f\u540c\u6b65\u5668）\u5b9e\u73b0，\u80fd\u66f4\u4f18\u96c5\u5730\u5904\u7406\u5404\u7c7b\u5e76\u53d1\u573a\u666f\u3002\u672c\u6587\u7528 \u201c\u751f\u6d3b\u573a\u666f + \u4ee3\u7801\u793a\u4f8b\u201d \u7684\u65b9\u5f0f，\u5e26\u4f60\u5403\u900f\u8fd9 4 \u4e2a\u5de5\u5177\u7c7b，\u9762\u8bd5\u548c\u5de5\u4f5c\u90fd\u80fd\u7528\u5f97\u4e0a！<\/p>\n
synchronized\u4f5c\u4e3a Java \u57fa\u7840\u7684\u540c\u6b65\u9501，\u5b58\u5728 3 \u4e2a\u660e\u663e\u5c40\u9650：<\/p>\n
\u800c\u5e76\u53d1\u5de5\u5177\u7c7b\u7684\u6838\u5fc3\u4ef7\u503c\u7684\u662f **\u201c\u7ebf\u7a0b\u534f\u4f5c\u4e0e\u7cbe\u7ec6\u5316\u63a7\u5236\u201d**，\u8ba9\u591a\u7ebf\u7a0b\u4e0d\u518d\u662f \u201c\u5404\u81ea\u4e3a\u6218\u201d，\u800c\u662f\u80fd\u6309\u9884\u671f\u6d41\u7a0b\u534f\u540c\u5de5\u4f5c，\u540c\u65f6\u63d0\u4f9b\u8d85\u65f6\u3001\u56de\u8c03\u7b49\u9ad8\u7ea7\u7279\u6027，\u8ba9\u5e76\u53d1\u7f16\u7a0b\u66f4\u5b89\u5168\u3001\u66f4\u7075\u6d3b\u3002<\/p>\n
\u5141\u8bb8 1 \u4e2a\u6216\u591a\u4e2a\u7ebf\u7a0b\u7b49\u5f85，\u76f4\u5230\u5176\u4ed6N\u4e2a\u7ebf\u7a0b\u5b8c\u6210\u4efb\u52a1\u540e，\u518d\u7ee7\u7eed\u6267\u884c\u3002\u672c\u8d28\u662f \u201c\u5012\u8ba1\u6570\u5668\u201d，\u8ba1\u6570\u5668\u5f52 0 \u65f6，\u7b49\u5f85\u7ebf\u7a0b\u88ab\u5524\u9192\u3002<\/p>\n
import java.util.concurrent.CountDownLatch;<\/p>\n
public class CountDownLatchDemo1 {
\n public static void main(String[] args) throws InterruptedException {
\n int threadCount = 10; \/\/ 10\u4e2a\u5de5\u4f5c\u7ebf\u7a0b
\n CountDownLatch latch = new CountDownLatch(threadCount);<\/p>\n
for (int i = 0; i < threadCount; i++) {
\n new Thread(() -> {
\n try {
\n \/\/ \u6a21\u62df\u5de5\u4f5c\u4efb\u52a1（\u5982\u6570\u636e\u67e5\u8be2\u3001\u6587\u4ef6\u5904\u7406）
\n Thread.sleep(1000);
\n System.out.println(Thread.currentThread().getName() + "：\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5");
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n } finally {
\n latch.countDown(); \/\/ \u8ba1\u6570\u5668\u51cf1（\u5fc5\u987b\u653e\u5728finally，\u786e\u4fdd\u4efb\u52a1\u5b8c\u6210\u540e\u6267\u884c）
\n }
\n }, "\u5de5\u4f5c\u7ebf\u7a0b" + i).start();
\n }<\/p>\n
System.out.println("\u4e3b\u7ebf\u7a0b：\u7b49\u5f85\u6240\u6709\u5de5\u4f5c\u7ebf\u7a0b\u5b8c\u6210…");
\n latch.await(); \/\/ \u963b\u585e\u7b49\u5f85\u8ba1\u6570\u5668\u4e3a0
\n System.out.println("\u4e3b\u7ebf\u7a0b：\u6240\u6709\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5，\u5f00\u59cb\u6c47\u603b\u7ed3\u679c");
\n }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
\u4e3b\u7ebf\u7a0b：\u7b49\u5f85\u6240\u6709\u5de5\u4f5c\u7ebf\u7a0b\u5b8c\u6210…
\n\u5de5\u4f5c\u7ebf\u7a0b0：\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5
\n\u5de5\u4f5c\u7ebf\u7a0b1：\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5
\n…（\u4e2d\u95f4\u7701\u75658\u4e2a\u7ebf\u7a0b）
\n\u5de5\u4f5c\u7ebf\u7a0b9：\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5
\n\u4e3b\u7ebf\u7a0b：\u6240\u6709\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5，\u5f00\u59cb\u6c47\u603b\u7ed3\u679c<\/p>\n
import java.util.concurrent.CountDownLatch;<\/p>\n
public class CountDownLatchDemo2 {
\n public static void main(String[] args) throws InterruptedException {
\n CountDownLatch latch = new CountDownLatch(1); \/\/ \u8ba1\u6570\u5668\u521d\u59cb\u4e3a1（\u7b49\u5f851\u4e2a\u4fe1\u53f7）
\n int threadCount = 10;<\/p>\n
for (int i = 0; i < threadCount; i++) {
\n new Thread(() -> {
\n try {
\n System.out.println(Thread.currentThread().getName() + "：\u51c6\u5907\u5c31\u7eea，\u7b49\u5f85\u6307\u4ee4");
\n latch.await(); \/\/ \u963b\u585e\u7b49\u5f85\u8ba1\u6570\u5668\u4e3a0
\n System.out.println(Thread.currentThread().getName() + "：\u6536\u5230\u6307\u4ee4，\u5f00\u59cb\u6267\u884c");
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n }
\n }, "\u8fd0\u52a8\u5458" + i).start();
\n }<\/p>\n
\/\/ \u6a21\u62df\u88c1\u5224\u51c6\u5907\u65f6\u95f4
\n Thread.sleep(2000);
\n System.out.println("\u4e3b\u7ebf\u7a0b（\u88c1\u5224）：\u53d1\u4ee4！");
\n latch.countDown(); \/\/ \u8ba1\u6570\u5668\u51cf1（\u53d8\u4e3a0，\u5524\u9192\u6240\u6709\u7b49\u5f85\u7ebf\u7a0b）
\n }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
\u8fd0\u52a8\u54580：\u51c6\u5907\u5c31\u7eea，\u7b49\u5f85\u6307\u4ee4
\n\u8fd0\u52a8\u54581：\u51c6\u5907\u5c31\u7eea，\u7b49\u5f85\u6307\u4ee4
\n…（\u4e2d\u95f4\u7701\u75658\u4e2a\u7ebf\u7a0b）
\n\u8fd0\u52a8\u54589：\u51c6\u5907\u5c31\u7eea，\u7b49\u5f85\u6307\u4ee4
\n\u4e3b\u7ebf\u7a0b（\u88c1\u5224）：\u53d1\u4ee4！
\n\u8fd0\u52a8\u54580：\u6536\u5230\u6307\u4ee4，\u5f00\u59cb\u6267\u884c
\n\u8fd0\u52a8\u54581：\u6536\u5230\u6307\u4ee4，\u5f00\u59cb\u6267\u884c
\n…（\u6240\u6709\u7ebf\u7a0b\u540c\u65f6\u6267\u884c）<\/p>\n
\u8ba9N\u4e2a\u7ebf\u7a0b\u5230\u8fbe \u201c\u5c4f\u969c\u201d \u540e\u963b\u585e，\u76f4\u5230\u6240\u6709\u7ebf\u7a0b\u90fd\u5230\u8fbe\u5c4f\u969c，\u5c4f\u969c\u624d\u4f1a\u89e3\u9664，\u6240\u6709\u7ebf\u7a0b\u540c\u65f6\u7ee7\u7eed\u6267\u884c\u3002\u4e0eCountDownLatch\u7684\u6838\u5fc3\u533a\u522b\u662f：\u8ba1\u6570\u5668\u53ef\u5faa\u73af\u4f7f\u7528\u3002<\/p>\n
import java.util.concurrent.CyclicBarrier;<\/p>\n
public class CyclicBarrierDemo {
\n public static void main(String[] args) {
\n int threadCount = 5; \/\/ 5\u4e2a\u7ebf\u7a0b\u53c2\u4e0e
\n \/\/ \u5c4f\u969c\u89e6\u53d1\u65f6，\u6267\u884c\u56de\u8c03（\u6240\u6709\u7ebf\u7a0b\u5230\u9f50\u540e\u6267\u884c）
\n CyclicBarrier barrier = new CyclicBarrier(threadCount, () -> {
\n System.out.println("\\\\n===== \u6240\u6709\u7ebf\u7a0b\u5df2\u5230\u9f50，\u5c4f\u969c\u89e3\u9664！=====\\\\n");
\n });<\/p>\n
for (int i = 0; i < threadCount; i++) {
\n int finalI = i;
\n new Thread(() -> {
\n try {
\n \/\/ \u6a21\u62df\u7ebf\u7a0b\u5230\u8fbe\u5c4f\u969c\u524d\u7684\u4efb\u52a1（\u5982\u6570\u636e\u9884\u5904\u7406）
\n Thread.sleep((long) (Math.random() * 2000));
\n System.out.println(Thread.currentThread().getName() + "：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c" + finalI + "\u9636\u6bb5\u4efb\u52a1）");<\/p>\n
barrier.await(); \/\/ \u963b\u585e\u7b49\u5f85\u5176\u4ed6\u7ebf\u7a0b<\/p>\n
\/\/ \u5c4f\u969c\u89e3\u9664\u540e，\u6267\u884c\u540e\u7eed\u4efb\u52a1
\n Thread.sleep(1000);
\n System.out.println(Thread.currentThread().getName() + "：\u7ee7\u7eed\u6267\u884c\u7b2c" + (finalI + 1) + "\u9636\u6bb5\u4efb\u52a1");
\n } catch (Exception e) {
\n e.printStackTrace();
\n }
\n }, "\u5de5\u4f5c\u7ebf\u7a0b" + i).start();
\n }
\n }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
\u5de5\u4f5c\u7ebf\u7a0b2：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c2\u9636\u6bb5\u4efb\u52a1）
\n\u5de5\u4f5c\u7ebf\u7a0b0：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c0\u9636\u6bb5\u4efb\u52a1）
\n\u5de5\u4f5c\u7ebf\u7a0b1：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c1\u9636\u6bb5\u4efb\u52a1）
\n\u5de5\u4f5c\u7ebf\u7a0b3：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c3\u9636\u6bb5\u4efb\u52a1）
\n\u5de5\u4f5c\u7ebf\u7a0b4：\u5df2\u5230\u8fbe\u5c4f\u969c（\u5b8c\u6210\u7b2c4\u9636\u6bb5\u4efb\u52a1）<\/p>\n
===== \u6240\u6709\u7ebf\u7a0b\u5df2\u5230\u9f50，\u5c4f\u969c\u89e3\u9664！=====<\/p>\n
\u5de5\u4f5c\u7ebf\u7a0b4：\u7ee7\u7eed\u6267\u884c\u7b2c5\u9636\u6bb5\u4efb\u52a1
\n\u5de5\u4f5c\u7ebf\u7a0b0：\u7ee7\u7eed\u6267\u884c\u7b2c1\u9636\u6bb5\u4efb\u52a1
\n\u5de5\u4f5c\u7ebf\u7a0b2：\u7ee7\u7eed\u6267\u884c\u7b2c3\u9636\u6bb5\u4efb\u52a1
\n\u5de5\u4f5c\u7ebf\u7a0b1：\u7ee7\u7eed\u6267\u884c\u7b2c2\u9636\u6bb5\u4efb\u52a1
\n\u5de5\u4f5c\u7ebf\u7a0b3：\u7ee7\u7eed\u6267\u884c\u7b2c4\u9636\u6bb5\u4efb\u52a1<\/p>\n
\u63a7\u5236\u540c\u4e00\u65f6\u95f4\u8bbf\u95ee\u67d0\u4e2a\u8d44\u6e90\u7684\u7ebf\u7a0b\u6570，\u672c\u8d28\u662f \u201c\u8bb8\u53ef\u8ba1\u6570\u5668\u201d，\u7ebf\u7a0b\u9700\u5148\u83b7\u53d6\u8bb8\u53ef\u624d\u80fd\u8bbf\u95ee\u8d44\u6e90，\u7528\u5b8c\u540e\u91ca\u653e\u8bb8\u53ef\u3002<\/p>\n
import java.text.SimpleDateFormat;
\nimport java.util.Date;
\nimport java.util.concurrent.Semaphore;<\/p>\n
public class SemaphoreDemo {
\n public static void main(String[] args) {
\n int maxPermits = 3; \/\/ \u6700\u591a3\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee
\n Semaphore semaphore = new Semaphore(maxPermits);
\n SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");<\/p>\n
\/\/ \u6a21\u62df10\u4e2a\u8bf7\u6c42\u7ebf\u7a0b
\n for (int i = 0; i < 10; i++) {
\n new Thread(() -> {
\n \/\/ \u5c1d\u8bd53\u79d2\u5185\u83b7\u53d6\u8bb8\u53ef，\u907f\u514d\u6c38\u4e45\u963b\u585e
\n try {
\n if (semaphore.tryAcquire(3, java.util.concurrent.TimeUnit.SECONDS)) {
\n \/\/ \u6a21\u62df\u63a5\u53e3\u5904\u7406\u65f6\u95f4（1-2\u79d2）
\n Thread.sleep((long) (Math.random() * 1000 + 1000));
\n System.out.println(sdf.format(new Date()) + " | " + Thread.currentThread().getName() + "：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f");
\n } else {
\n System.out.println(sdf.format(new Date()) + " | " + Thread.currentThread().getName() + "：\u83b7\u53d6\u8bb8\u53ef\u8d85\u65f6，\u63a5\u53e3\u8bbf\u95ee\u5931\u8d25");
\n }
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n } finally {
\n \/\/ \u91ca\u653e\u8bb8\u53ef（\u5fc5\u987b\u653e\u5728finally，\u907f\u514d\u8bb8\u53ef\u6cc4\u9732）
\n if (semaphore.hasQueuedThreads()) {
\n semaphore.release();
\n }
\n }
\n }, "\u8bf7\u6c42\u7ebf\u7a0b" + i).start();
\n }
\n }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
2024-05-20 15:30:01 | \u8bf7\u6c42\u7ebf\u7a0b0：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f
\n2024-05-20 15:30:01 | \u8bf7\u6c42\u7ebf\u7a0b1：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f
\n2024-05-20 15:30:01 | \u8bf7\u6c42\u7ebf\u7a0b2：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f
\n2024-05-20 15:30:02 | \u8bf7\u6c42\u7ebf\u7a0b3：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f
\n2024-05-20 15:30:02 | \u8bf7\u6c42\u7ebf\u7a0b4：\u83b7\u53d6\u8bb8\u53ef，\u63a5\u53e3\u8bbf\u95ee\u6210\u529f
\n…（\u540e\u7eed\u7ebf\u7a0b\u4f9d\u6b21\u83b7\u53d6\u91ca\u653e\u7684\u8bb8\u53ef）<\/p>\n
\u7528\u4e8e\u4e24\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u7684\u53cc\u5411\u6570\u636e\u4ea4\u6362，\u7ebf\u7a0b\u5230\u8fbe\u4ea4\u6362\u70b9\u540e，\u4f1a\u963b\u585e\u7b49\u5f85\u53e6\u4e00\u4e2a\u7ebf\u7a0b，\u76f4\u5230\u4e24\u4e2a\u7ebf\u7a0b\u90fd\u5230\u8fbe，\u624d\u4ea4\u6362\u5f7c\u6b64\u7684\u6570\u636e\u3002<\/p>\n
import java.util.concurrent.Exchanger;<\/p>\n
public class ExchangerDemo {
\n public static void main(String[] args) {
\n Exchanger<String> exchanger = new Exchanger<>(); \/\/ \u4ea4\u6362String\u7c7b\u578b\u6570\u636e<\/p>\n
\/\/ \u7ebf\u7a0b1：\u53d1\u9001\u6570\u636e"A"，\u63a5\u6536\u7ebf\u7a0b2\u7684\u6570\u636e
\n new Thread(() -> {
\n try {
\n String data = "A";
\n System.out.println(Thread.currentThread().getName() + "：\u51c6\u5907\u4ea4\u6362\u7684\u6570\u636e：" + data);
\n \/\/ \u963b\u585e\u7b49\u5f85\u7ebf\u7a0b2，\u4ea4\u6362\u6570\u636e
\n String receivedData = exchanger.exchange(data);
\n System.out.println(Thread.currentThread().getName() + "：\u4ea4\u6362\u540e\u6536\u5230\u7684\u6570\u636e：" + receivedData);
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n }
\n }, "\u4ea4\u6362\u7ebf\u7a0b1").start();<\/p>\n
\/\/ \u7ebf\u7a0b2：\u53d1\u9001\u6570\u636e"B"，\u63a5\u6536\u7ebf\u7a0b1\u7684\u6570\u636e
\n new Thread(() -> {
\n try {
\n String data = "B";
\n System.out.println(Thread.currentThread().getName() + "：\u51c6\u5907\u4ea4\u6362\u7684\u6570\u636e：" + data);
\n \/\/ \u6a21\u62df\u5ef6\u8fdf\u5230\u8fbe\u4ea4\u6362\u70b9
\n Thread.sleep(1000);
\n String receivedData = exchanger.exchange(data);
\n System.out.println(Thread.currentThread().getName() + "：\u4ea4\u6362\u540e\u6536\u5230\u7684\u6570\u636e：" + receivedData);
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n }
\n }, "\u4ea4\u6362\u7ebf\u7a0b2").start();
\n }
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
\u4ea4\u6362\u7ebf\u7a0b1：\u51c6\u5907\u4ea4\u6362\u7684\u6570\u636e：A
\n\u4ea4\u6362\u7ebf\u7a0b2：\u51c6\u5907\u4ea4\u6362\u7684\u6570\u636e：B
\n\u4ea4\u6362\u7ebf\u7a0b1：\u4ea4\u6362\u540e\u6536\u5230\u7684\u6570\u636e：B
\n\u4ea4\u6362\u7ebf\u7a0b2：\u4ea4\u6362\u540e\u6536\u5230\u7684\u6570\u636e：A<\/p>\n
| CountDownLatch<\/td>\n | 1 \u4e2a \/ \u591a\u4e2a\u7ebf\u7a0b\u7b49\u5f85 N \u4e2a\u7ebf\u7a0b\u5b8c\u6210<\/td>\n | \u4e00\u6b21\u6027\u4f7f\u7528<\/td>\n | \u4efb\u52a1\u6c47\u603b\u3001\u6307\u4ee4\u4e0b\u53d1<\/td>\n | \u7b49\u5f85\u7ebf\u7a0b\u4e0d\u53c2\u4e0e\u4efb\u52a1，\u4ec5\u7b49\u5f85；\u8ba1\u6570\u5668\u4e0d\u53ef\u5faa\u73af<\/td>\n<\/tr>\n |
| CyclicBarrier<\/td>\n | N \u4e2a\u7ebf\u7a0b\u4e92\u76f8\u7b49\u5f85，\u5230\u9f50\u540e\u540c\u65f6\u6267\u884c<\/td>\n | \u53ef\u5faa\u73af\u4f7f\u7528<\/td>\n | \u591a\u9636\u6bb5\u4efb\u52a1\u3001\u56e2\u961f\u534f\u4f5c<\/td>\n | \u6240\u6709\u7ebf\u7a0b\u90fd\u53c2\u4e0e\u4efb\u52a1，\u5230\u8fbe\u5c4f\u969c\u540e\u7ee7\u7eed；\u8ba1\u6570\u5668\u53ef\u91cd\u7f6e<\/td>\n<\/tr>\n |
| Semaphore<\/td>\n | \u63a7\u5236\u540c\u65f6\u8bbf\u95ee\u8d44\u6e90\u7684\u7ebf\u7a0b\u6570<\/td>\n | \u53ef\u91cd\u590d\u83b7\u53d6\u91ca\u653e<\/td>\n | \u63a5\u53e3\u9650\u6d41\u3001\u8d44\u6e90\u6c60\u63a7\u5236<\/td>\n | \u4e0d\u6d89\u53ca\u7ebf\u7a0b\u7b49\u5f85，\u4ec5\u6d41\u91cf\u63a7\u5236<\/td>\n<\/tr>\n |
| Exchanger<\/td>\n | \u4e24\u4e2a\u7ebf\u7a0b\u53cc\u5411\u6570\u636e\u4ea4\u6362<\/td>\n | \u65e0\u8ba1\u6570\u5668<\/td>\n | \u6570\u636e\u4ea4\u6362\u3001\u53cc\u5411\u6821\u9a8c<\/td>\n | \u4ec5\u652f\u6301\u4e24\u4e2a\u7ebf\u7a0b，\u4e13\u6ce8\u6570\u636e\u4ea4\u6362<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u56db\u3001\u5b9e\u6218\u907f\u5751\u6307\u5357<\/h3>\n\u4e94\u3001\u603b\u7ed3<\/h3>\nJava \u5e76\u53d1\u5de5\u5177\u7c7b\u662fsynchronized\u7684\u8fdb\u9636\u66ff\u4ee3\u65b9\u6848，\u4e13\u6ce8\u4e8e \u201c\u7ebf\u7a0b\u534f\u4f5c\u201d \u548c \u201c\u7cbe\u7ec6\u5316\u63a7\u5236\u201d：<\/p>\n
|