{"id":1080536,"date":"2025-01-08T12:31:02","date_gmt":"2025-01-08T04:31:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1080536.html"},"modified":"2025-01-08T12:31:04","modified_gmt":"2025-01-08T04:31:04","slug":"python%e5%a6%82%e4%bd%95%e8%ae%a9%e7%ba%bf%e7%a8%8b%e4%b8%80%e7%9b%b4%e8%bf%90%e8%a1%8c-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1080536.html","title":{"rendered":"python\u5982\u4f55\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c"},"content":{"rendered":"

\"python\u5982\u4f55\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\"<\/p>\n

Python\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5982\u4f7f\u7528while\u5faa\u73af\u3001\u5b88\u62a4\u7ebf\u7a0b\u3001\u961f\u5217\u7b49\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528while\u5faa\u73af\u3002<\/strong> \u4f7f\u7528while\u5faa\u73af\u53ef\u4ee5\u786e\u4fdd\u7ebf\u7a0b\u5728\u6ee1\u8db3\u4e00\u5b9a\u6761\u4ef6\u65f6\u4e00\u76f4\u8fd0\u884c\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u4f7f\u7528while\u5faa\u73af\u7684\u65b9\u6cd5\uff0c\u5e76\u63a2\u8ba8\u5176\u4ed6\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528while\u5faa\u73af<\/h2>\n<\/p>\n

1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528while\u5faa\u73af\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\uff0c\u76f4\u5230\u6ee1\u8db3\u67d0\u4e2a\u9000\u51fa\u6761\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

import threading<\/p>\n
import time<\/p>\n
def run():<\/p>\n
    while True:<\/p>\n
        print("Thread is running")<\/p>\n
        time.sleep(1)<\/p>\n
thread = threading.Thread(target=run)<\/p>\n
thread.start()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7ebf\u7a0b\u4e2d\u7684run\u51fd\u6570\u5305\u542b\u4e86\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\uff08while True<\/code>\uff09\uff0c\u5b83\u4f1a\u4e00\u76f4\u6253\u5370"Thread is running"\u5e76\u6bcf\u96941\u79d2\u4f11\u7720\u4e00\u6b21\u3002<\/p>\n<\/p>\n
2\u3001\u6dfb\u52a0\u9000\u51fa\u6761\u4ef6<\/h3>\n<\/p>\n
\u4e3a\u4e86\u80fd\u591f\u6709\u63a7\u5236\u5730\u7ec8\u6b62\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\u4f5c\u4e3a\u9000\u51fa\u6761\u4ef6\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
import time<\/p>\n
running = True<\/p>\n
def run():<\/p>\n
    while running:<\/p>\n
        print("Thread is running")<\/p>\n
        time.sleep(1)<\/p>\n
thread = threading.Thread(target=run)<\/p>\n
thread.start()<\/p>\n
time.sleep(5)<\/p>\n
running = False<\/p>\n
thread.join()<\/p>\n
print("Thread has been terminated")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0crunning<\/code>\u53d8\u91cf\u7528\u4e8e\u63a7\u5236\u7ebf\u7a0b\u7684\u8fd0\u884c\u3002\u5f53running<\/code>\u8bbe\u7f6e\u4e3aFalse<\/code>\u65f6\uff0c\u7ebf\u7a0b\u4f1a\u9000\u51fa\u5faa\u73af\u5e76\u7ec8\u6b62\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u5b88\u62a4\u7ebf\u7a0b<\/h2>\n<\/p>\n
1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n
\u5b88\u62a4\u7ebf\u7a0b\uff08Daemon Thread\uff09\u662f\u6307\u5728\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u65f6\u81ea\u52a8\u7ec8\u6b62\u7684\u7ebf\u7a0b\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u7ebf\u7a0b\u7684daemon<\/code>\u5c5e\u6027\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
import time<\/p>\n
def run():<\/p>\n
    while True:<\/p>\n
        print("Daemon thread is running")<\/p>\n
        time.sleep(1)<\/p>\n
thread = threading.Thread(target=run)<\/p>\n
thread.daemon = True<\/p>\n
thread.start()<\/p>\n
time.sleep(5)<\/p>\n
print("MAI<\/a>n thread is ending")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b88\u62a4\u7ebf\u7a0b\u4f1a\u5728\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u65f6\u81ea\u52a8\u7ec8\u6b62\u3002<\/p>\n<\/p>\n
2\u3001\u5b88\u62a4\u7ebf\u7a0b\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u5b88\u62a4\u7ebf\u7a0b\u9002\u7528\u4e8e\u90a3\u4e9b\u9700\u8981\u540e\u53f0\u8fd0\u884c\u7684\u4efb\u52a1\uff0c\u4f8b\u5982\u65e5\u5fd7\u8bb0\u5f55\u3001\u76d1\u63a7\u7b49\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b88\u62a4\u7ebf\u7a0b\u5728\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u65f6\u4f1a\u88ab\u5f3a\u5236\u7ec8\u6b62\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u672a\u5b8c\u6210\u7684\u4efb\u52a1\u4e22\u5931\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u961f\u5217<\/h2>\n<\/p>\n
1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n
\u961f\u5217\uff08Queue\uff09\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u7ebf\u7a0b\u95f4\u7684\u901a\u4fe1\u548c\u540c\u6b65\u3002\u4f7f\u7528\u961f\u5217\u53ef\u4ee5\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\u5e76\u5904\u7406\u4efb\u52a1\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
import queue<\/p>\n
import time<\/p>\n
def worker(q):<\/p>\n
    while True:<\/p>\n
        item = q.get()<\/p>\n
        if item is None:<\/p>\n
            break<\/p>\n
        print(f"Processing item: {item}")<\/p>\n
        q.task_done()<\/p>\n
q = queue.Queue()<\/p>\n
thread = threading.Thread(target=worker, args=(q,))<\/p>\n
thread.start()<\/p>\n
for i in range(10):<\/p>\n
    q.put(i)<\/p>\n
q.put(None)<\/p>\n
thread.join()<\/p>\n
print("Worker thread has been terminated")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7ebf\u7a0b\u4ece\u961f\u5217\u4e2d\u83b7\u53d6\u4efb\u52a1\u5e76\u5904\u7406\uff0c\u76f4\u5230\u9047\u5230None<\/code>\uff0c\u8868\u793a\u6ca1\u6709\u66f4\u591a\u4efb\u52a1\u3002<\/p>\n<\/p>\n
2\u3001\u4f18\u70b9\u4e0e\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u4f7f\u7528\u961f\u5217\u53ef\u4ee5\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\u5e76\u5904\u7406\u52a8\u6001\u6dfb\u52a0\u7684\u4efb\u52a1\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5e76\u53d1\u5904\u7406\u7684\u573a\u666f\uff0c\u5982\u751f\u4ea7\u8005-\u6d88\u8d39\u8005\u6a21\u578b\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u5b9a\u65f6\u5668<\/h2>\n<\/p>\n
1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n
\u5b9a\u65f6\u5668\uff08Timer\uff09\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7ebf\u7a0b\uff0c\u5b83\u4f1a\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u540e\u8fd0\u884c\u4e00\u4e2a\u51fd\u6570\u3002\u53ef\u4ee5\u4f7f\u7528\u5b9a\u65f6\u5668\u5b9e\u73b0\u5468\u671f\u6027\u4efb\u52a1\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
def run():<\/p>\n
    print("Timer triggered")<\/p>\n
    threading.Timer(1, run).start()<\/p>\n
threading.Timer(1, run).start()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u65f6\u5668\u6bcf\u96941\u79d2\u89e6\u53d1\u4e00\u6b21run<\/code>\u51fd\u6570\u3002<\/p>\n<\/p>\n
2\u3001\u4f18\u70b9\u4e0e\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u5b9a\u65f6\u5668\u9002\u7528\u4e8e\u9700\u8981\u5b9a\u65f6\u6267\u884c\u4efb\u52a1\u7684\u573a\u666f\uff0c\u5982\u5b9a\u65f6\u5907\u4efd\u3001\u5b9a\u65f6\u68c0\u67e5\u7b49\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b9a\u65f6\u5668\u4f1a\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7ebf\u7a0b\u6570\u8fc7\u591a\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528\u4e8b\u4ef6<\/h2>\n<\/p>\n
1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n
\u4e8b\u4ef6\uff08Event\uff09\u662f\u4e00\u79cd\u7ebf\u7a0b\u95f4\u7684\u540c\u6b65\u673a\u5236\uff0c\u53ef\u4ee5\u7528\u4e8e\u63a7\u5236\u7ebf\u7a0b\u7684\u8fd0\u884c\u548c\u505c\u6b62\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
import time<\/p>\n
event = threading.Event()<\/p>\n
def run():<\/p>\n
    while not event.is_set():<\/p>\n
        print("Thread is running")<\/p>\n
        time.sleep(1)<\/p>\n
thread = threading.Thread(target=run)<\/p>\n
thread.start()<\/p>\n
time.sleep(5)<\/p>\n
event.set()<\/p>\n
thread.join()<\/p>\n
print("Thread has been terminated")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u8bbe\u7f6e\u4e8b\u4ef6\u5bf9\u8c61\u6765\u63a7\u5236\u7ebf\u7a0b\u7684\u8fd0\u884c\u548c\u505c\u6b62\u3002<\/p>\n<\/p>\n
2\u3001\u4f18\u70b9\u4e0e\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u4e8b\u4ef6\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u63a7\u5236\u7ebf\u7a0b\u542f\u52a8\u548c\u505c\u6b62\u7684\u573a\u666f\uff0c\u5982\u7ebf\u7a0b\u6c60\u7ba1\u7406\u3001\u5e76\u53d1\u4efb\u52a1\u63a7\u5236\u7b49\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u5b9a\u65f6\u4efb\u52a1\u8c03\u5ea6\u5668<\/h2>\n<\/p>\n
1\u3001\u57fa\u672c\u5b9e\u73b0<\/h3>\n<\/p>\n
\u5b9a\u65f6\u4efb\u52a1\u8c03\u5ea6\u5668\uff08\u5982APScheduler\uff09\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u590d\u6742\u7684\u5b9a\u65f6\u4efb\u52a1\u8c03\u5ea6\uff1a<\/p>\n<\/p>\n
from apscheduler.schedulers.background import BackgroundScheduler<\/p>\n
import time<\/p>\n
def job():<\/p>\n
    print("Scheduled job is running")<\/p>\n
scheduler = BackgroundScheduler()<\/p>\n
scheduler.add_job(job, 'interval', seconds=1)<\/p>\n
scheduler.start()<\/p>\n
try:<\/p>\n
    while True:<\/p>\n
        time.sleep(2)<\/p>\n
except (KeyboardInterrupt, SystemExit):<\/p>\n
    scheduler.shutdown()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528APScheduler\u5b9e\u73b0\u4e86\u6bcf\u96941\u79d2\u6267\u884c\u4e00\u6b21\u4efb\u52a1\u3002<\/p>\n<\/p>\n
2\u3001\u4f18\u70b9\u4e0e\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u5b9a\u65f6\u4efb\u52a1\u8c03\u5ea6\u5668\u9002\u7528\u4e8e\u9700\u8981\u590d\u6742\u4efb\u52a1\u8c03\u5ea6\u7684\u573a\u666f\uff0c\u5982\u5b9a\u65f6\u4efb\u52a1\u7ba1\u7406\u3001\u4efb\u52a1\u4f9d\u8d56\u5173\u7cfb\u5904\u7406\u7b49\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u7efc\u5408\u5e94\u7528<\/h2>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u7ed3\u5408\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u7ebf\u7a0b\u7684\u6301\u7eed\u8fd0\u884c\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8b\u4ef6\u548c\u961f\u5217\u7ed3\u5408\uff0c\u5b9e\u73b0\u9ad8\u6548\u7684\u4efb\u52a1\u8c03\u5ea6\u548c\u7ebf\u7a0b\u63a7\u5236\uff1a<\/p>\n<\/p>\n
import threading<\/p>\n
import queue<\/p>\n
import time<\/p>\n
event = threading.Event()<\/p>\n
q = queue.Queue()<\/p>\n
def worker():<\/p>\n
    while not event.is_set():<\/p>\n
        try:<\/p>\n
            item = q.get(timeout=1)<\/p>\n
            print(f"Processing item: {item}")<\/p>\n
            q.task_done()<\/p>\n
        except queue.Empty:<\/p>\n
            continue<\/p>\n
thread = threading.Thread(target=worker)<\/p>\n
thread.start()<\/p>\n
for i in range(10):<\/p>\n
    q.put(i)<\/p>\n
time.sleep(5)<\/p>\n
event.set()<\/p>\n
thread.join()<\/p>\n
print("Worker thread has been terminated")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u4e8b\u4ef6\u63a7\u5236\u7ebf\u7a0b\u7684\u8fd0\u884c\u72b6\u6001\uff0c\u5e76\u4f7f\u7528\u961f\u5217\u5904\u7406\u4efb\u52a1\uff0c\u5b9e\u73b0\u4e86\u9ad8\u6548\u7684\u7ebf\u7a0b\u7ba1\u7406\u3002<\/p>\n<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0cPython\u4e2d\u8ba9\u7ebf\u7a0b\u4e00\u76f4\u8fd0\u884c\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u4f7f\u7528while\u5faa\u73af\u3001\u5b88\u62a4\u7ebf\u7a0b\u3001\u961f\u5217\u3001\u5b9a\u65f6\u5668\u3001\u4e8b\u4ef6\u548c\u5b9a\u65f6\u4efb\u52a1\u8c03\u5ea6\u5668\u7b49\u65b9\u6cd5<\/strong>\uff0c\u53ef\u4ee5\u7075\u6d3b\u5730\u5b9e\u73b0\u7ebf\u7a0b\u7684\u6301\u7eed\u8fd0\u884c\u548c\u4efb\u52a1\u8c03\u5ea6\u3002\u5e0c\u671b\u8fd9\u4e9b\u65b9\u6cd5\u80fd\u591f\u5e2e\u52a9\u60a8\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u66f4\u597d\u5730\u7ba1\u7406\u7ebf\u7a0b\u548c\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u6301\u7eed\u8fd0\u884c\u7684\u7ebf\u7a0b\uff1f<\/strong>
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Python\u4e2d\u5982\u4f55\u5904\u7406\u591a\u7ebf\u7a0b\u4e2d\u7684\u5f02\u5e38\uff1f<\/strong>
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