{"id":1357,"date":"2022-10-28T17:13:18","date_gmt":"2022-10-28T09:13:18","guid":{"rendered":"http:\/\/175.24.184.226\/?p=1357"},"modified":"2022-10-28T17:13:18","modified_gmt":"2022-10-28T09:13:18","slug":"python-product%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"\/?p=1357","title":{"rendered":"python\u2014\u2014product()\u51fd\u6570"},"content":{"rendered":"

\u4e00\u3001\u6982\u8ff0<\/h2>\n

product \u7528\u4e8e\u6c42\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u7684\u7b1b\u5361\u5c14\u79ef(Cartesian Product)\uff0c\u5b83\u8ddf\u5d4c\u5957\u7684 for \u5faa\u73af\u7b49\u4ef7.\u5373:product(A, B) \u548c ((x,y) for x in A for y in B)\u4e00\u6837.<\/strong><\/p>\n

\u5b83\u7684\u4e00\u822c\u4f7f\u7528\u5f62\u5f0f\u5982\u4e0b\uff1a<\/p>\n

\n
itertools.product(\\*iterables, repeat=1)<\/code><\/pre>\n<\/blockquote>\n
\n
\u4e8c\u3001\u5b9e\u4f8b\u8bf4\u660e<\/h2>\n
\uff08\u4e00\uff09\u5bf9\u5217\u8868\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef<\/h3>\n
from itertools import product\na = ['a','b','c']\nb = [1,2,3]\nfor i ,j in product(a,b):  #\u5bf9\u5217\u8868\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    print (i,j)\nprint ('-----------------------------------------------------')<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\uff1a\"\"<\/strong><\/p>\n
\uff08\u4e8c\uff09\u5bf9\u5143\u7ec4\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef<\/h3>\n
from itertools import product\nc = ('e','f','g')\nd = (4,5,6)\nfor i,j in product(c,d):#\u5bf9\u5143\u7ec4\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    print (i,j)\nprint ('-----------------------------------------------------')<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\uff1a\"\"<\/strong><\/p>\n
\uff08\u4e09\uff09\u5bf9\u5b57\u5178\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef<\/h3>\n
from itertools import product\ne = {'\u9752\u9e1f':'\u6700\u7f8e','\u4e16\u5b50':'\u7ea8\u7ed4'}\nj = {'xiaofeng':'1','\u5e9f\u7269':'2'}#\u5bf9\u5b57\u5178\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\nfor i,j in product(e,j):\n    print (i,j)   #\u5b57\u5178\u53ea\u5bf9\u952e\u8fdb\u884c\u7b1b\u5361\u5c14\u79ef\u4ea4\u6362\nprint ('-----------------------------------------------------')<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\uff1a\"\"<\/strong><\/p>\n
\u6ce8\uff1a\u5b57\u5178\u53ea\u5bf9\u952e\u8fdb\u884c\u7b1b\u5361\u5c14\u79ef\u4ea4\u6362\uff01\uff01\uff01<\/strong><\/h3>\n
\u4ee3\u7801\u793a\u4f8b<\/h2>\n
# -*- coding: UTF-8 -*-\n"""=========================================================\n@Project -> File: PythonLocal -> 1.product\n@IDE: PyCharm\n@author: lxc\n@date: 2022\/10\/28 \u4e0b\u5348 5:02\n@Desc:\n\u529f\u80fd\u63cf\u8ff0\uff1a\nproduct\u65b9\u6cd5\u63cf\u8ff0\n\u5176\u5b9e\u4e5f\u6ca1\u6709\u6539\u53d8\u5faa\u73af\u6b21\u6570\uff0c\u5c31\u662f\u53d6\u7b1b\u5361\u5c14\u79ef\n"""\nfrom itertools import product\n\ndef list_product():\n    """\n    \uff08\u4e00\uff09\u5bf9\u5217\u8868\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    :return:\n    """\n    from itertools import product\n    a = ['a', 'b', 'c']\n    b = [1, 2, 3]\n    for i, j in product(a, b):  # \u5bf9\u5217\u8868\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n        print(i, j)\n    print('-----------------------------------------------------')\n\ndef tuple_product():\n    """\n    \uff08\u4e8c\uff09\u5bf9\u5143\u7ec4\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    :return:\n    """\n    from itertools import product\n    c = ('e', 'f', 'g')\n    d = (4, 5, 6)\n    for i, j in product(c, d):  # \u5bf9\u5143\u7ec4\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n        print(i, j)\n    print('-----------------------------------------------------')\n\ndef dict_product():\n    """\n    \u5bf9\u5b57\u5178\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    :return:\n    """\n    e = {'\u9752\u9e1f': '\u6700\u7f8e', '\u4e16\u5b50': '\u7ea8\u7ed4'}\n    j = {'xiaofeng': '1', '\u5e9f\u7269': '2'}  # \u5bf9\u5b57\u5178\u83b7\u53d6\u591a\u4e2a\u65e0\u7a77\u5faa\u73af\u5668\u7684\u7b1b\u5361\u5c14\u79ef\n    for i, j in product(e, j):\n        print(i, j)  # \u5b57\u5178\u53ea\u5bf9\u952e\u8fdb\u884c\u7b1b\u5361\u5c14\u79ef\u4ea4\u6362\n\nif __name__ == '__main__':\n    list_product()\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u6982\u8ff0 product \u7528\u4e8e\u6c42\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u7684\u7b1b\u5361\u5c14\u79ef(Cartesian Product)\uff0c\u5b83\u8ddf\u5d4c\u5957\u7684 for \u5faa\u73af\u7b49\u4ef7.\u5373:pro   \u2026 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[34],"tags":[16],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1357"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1357"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1357\/revisions"}],"predecessor-version":[{"id":1358,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1357\/revisions\/1358"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1357"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}