{"id":159,"date":"2021-07-05T14:20:07","date_gmt":"2021-07-05T06:20:07","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/python\/?p=159"},"modified":"2021-07-05T14:20:09","modified_gmt":"2021-07-05T06:20:09","slug":"python%e8%bf%9b%e7%a8%8b%e9%97%b4%e7%9a%84%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/python\/post-159.html","title":{"rendered":"python\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1"},"content":{"rendered":"\n

\u5bf9\u4e8e\u7ebf\u7a0b, \u53ea\u9700\u8981\u5168\u5c40\u53d8\u91cf\u5373\u53ef\u901a\u4fe1, \u800c\u5bf9\u4e8e\u8fdb\u7a0b, \u5219\u9700\u8981\u4f7f\u7528\u5185\u5b58\u901a\u4fe1<\/p>\n\n\n\n

a\u8fdb\u7a0b\u628a\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d, \u7136\u540eb\u8fdb\u7a0b\u4ece\u5185\u5b58\u83b7\u53d6, \u8fd9\u91cc\u901a\u8fc7”\u961f\u5217”\u5b58\u53d6\u6570\u636e<\/p>\n\n\n\n

\u8fdb\u7a0b\u901a\u4fe1\u6f14\u793a<\/h2>\n\n\n\n

\u8fd9\u91cc\u4f7f\u7528ipython\u8fdb\u884c\u6f14\u793a<\/p>\n\n\n\n

1.\u5f15\u5165multiprocessing\u6a21\u5757<\/p>\n\n\n\n

import multiprocessing<\/code><\/pre>\n\n\n\n
2.\u521b\u5efa\u4e00\u4e2a\u8fdb\u7a0b\u961f\u5217<\/p>\n\n\n\n
\u4f7f\u7528multiprocessing\u7684Queue\u65b9\u6cd5, \u53c2\u6570\u6307\u5b9a\u961f\u5217\u7684\u5927\u5c0f<\/p>\n\n\n\n
que = multiprocessing.Queue(3)<\/code><\/pre>\n\n\n\n
3.\u5b58\u50a8\u4e00\u4e2a\u503c\u5230\u8fdb\u7a0b\u4e2d<\/p>\n\n\n\n
que.put(\"111\")\nque.put(123)\nque.put([11, 22, 33])\nque.put(\"haha\")      # \u961f\u5217\u5df2\u7ecf\u6ee1\u4e86, \u8fdb\u5165\u963b\u585e, \u7b49\u5f85\u7b2c\u4e00\u4e2a\u88ab\u53d6\u8d70<\/code><\/pre>\n\n\n\n
4.\u4ece\u5185\u5b58\u4e2d\u83b7\u53d6\u503c<\/p>\n\n\n\n
\u4f9d\u636e\u961f\u5217\u7684\u7279\u6027, \u5148\u5b58\u7684\u5148\u88ab\u53d6\u51fa<\/p>\n\n\n\n
que.get()    # \"111\"\nque.get()    #  123\nque.get()    #  [11, 22, 33]\nque.get()    #  \u5df2\u7ecf\u6ca1\u6709\u6570\u636e\u4e86, \u4f1a\u963b\u585e, \u7b49\u5f85\u4e0b\u4e00\u4e2a\u6570\u636e\u5230\u6765<\/code><\/pre>\n\n\n\n
\u6b64\u5916, \u9488\u5bf9\u7ebf\u7a0b\u7684\u963b\u585e\u95ee\u9898, \u63d0\u4f9b\u4e86\u4e00\u4e2aput_nowait \u548c get_nowait\u65b9\u6cd5, \u5b83\u4e0d\u4f1a\u963b\u585e, \u4f46\u4f1a\u62a5\u5f02\u5e38, \u9700\u8981\u505a\u5f02\u5e38\u5904\u7406<\/p>\n\n\n\n
\u8fdb\u7a0b\u901a\u4fe1\u5b9e\u4f8b<\/h2>\n\n\n\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u8fdb\u7a0b\u901a\u4fe1\u4ee3\u7801\u5b9e\u4f8b, \u4ece\u4e00\u4e2a\u8fdb\u7a0b\u628a\u6570\u636e\u7ed9\u5230\u53e6\u4e00\u4e2a\u8fdb\u7a0b<\/p>\n\n\n\n
import multiprocessing\n\n\ndef put_data(q):\n    data = [11, 22, 33]\n\n    # \u5199\u5165\u5230\u961f\u5217\u4e2d\n    for d in data:\n        q.put(d)\n\n\ndef get_data(q):\n    data = []\n    # \u4ece\u961f\u5217\u4e2d\u83b7\u53d6\u6570\u636e\n    while True:\n        d = q.get()\n        data.append(d)\n\n        if q.empty():\n            break\n    print(data)\n\n\ndef main():\n    q = multiprocessing.Queue()\n    t1 = multiprocessing.Process(target=put_data, args=(q,))\n    t2 = multiprocessing.Process(target=get_data, args=(q,))\n\n    t1.start()\n    t2.start()\n\n\nif __name__ == \"__main__\":\n    main()\n<\/code><\/pre>\n\n\n\n
\u8fd0\u884c\u6b64\u7a0b\u5e8f, \u80fd\u5728get_data\u8fdb\u7a0b\u4e2d\u8f93\u51fa\u524d\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u8f93\u5165\u7684\u503c<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5bf9\u4e8e\u7ebf\u7a0b, \u53ea\u9700\u8981\u5168\u5c40\u53d8\u91cf\u5373\u53ef\u901a\u4fe1, \u800c\u5bf9\u4e8e\u8fdb\u7a0b, \u5219\u9700\u8981\u4f7f\u7528\u5185\u5b58\u901a\u4fe1 a\u8fdb\u7a0b\u628a\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d, \u7136\u540eb\u8fdb\u7a0b… \u7ee7\u7eed\u9605\u8bfb python\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/159"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/comments?post=159"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/159\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/media?parent=159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/categories?post=159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/tags?post=159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}