{"id":14521,"date":"2023-03-03T18:12:06","date_gmt":"2023-03-03T10:12:06","guid":{"rendered":"http:\/\/139.9.1.231\/?p=14521"},"modified":"2023-03-03T18:12:08","modified_gmt":"2023-03-03T10:12:08","slug":"python_map","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2023\/03\/03\/python_map\/","title":{"rendered":"python\u4e2dmap()\u51fd\u6570"},"content":{"rendered":"\n

\u63cf\u8ff0<\/h2>\n\n\n\n

map()<\/strong> \u4f1a\u6839\u636e\u63d0\u4f9b\u7684\u51fd\u6570\u5bf9\u6307\u5b9a\u5e8f\u5217\u505a\u6620\u5c04\u3002<\/p>\n\n\n\n

\u7b2c\u4e00\u4e2a\u53c2\u6570 function \u4ee5\u53c2\u6570\u5e8f\u5217\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u8c03\u7528 function \u51fd\u6570\uff0c\u8fd4\u56de\u5305\u542b\u6bcf\u6b21 function \u51fd\u6570\u8fd4\u56de\u503c\u7684\u65b0\u5217\u8868\u3002<\/p>\n\n\n\n

\u8bed\u6cd5<\/h2>\n\n\n\n

map() \u51fd\u6570\u8bed\u6cd5\uff1a<\/p>\n\n\n\n

map(function, iterable1,iterable2, ...)<\/pre>\n\n\n\n
\u53c2\u6570function<\/strong>\u4f20\u7684\u662f\u4e00\u4e2a\u51fd\u6570\u540d\uff0c\u53ef\u4ee5\u662fpython\u5185\u7f6e\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u81ea\u5b9a\u4e49\u7684\u3002
\u53c2\u6570iterable<\/strong>\u4f20\u7684\u662f\u4e00\u4e2a\u53ef\u4ee5\u8fed\u4ee3\u7684\u5bf9\u8c61\uff0c\u4f8b\u5982\u5217\u8868\uff0c\u5143\u7ec4\uff0c\u5b57\u7b26\u4e32\u8fd9\u6837\u7684\u3002<\/p>\n\n\n\n
\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\u5c31\u662f\u5c06function\u5e94\u7528\u4e8eiterable\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\uff0c\u7ed3\u679c\u4ee5\u5217\u8868\u7684\u5f62\u5f0f\u8fd4\u56de\u3002\u6ce8\u610f\u5230\u6ca1\u6709\uff0citerable\u540e\u9762\u8fd8\u6709\u7701\u7565\u53f7\uff0c\u610f\u601d\u5c31\u662f\u53ef\u4ee5\u4f20\u5f88\u591a\u4e2aiterable\uff0c\u5982\u679c\u6709\u989d\u5916\u7684iterable\u53c2\u6570\uff0c\u5e76\u884c\u7684\u4ece\u8fd9\u4e9b\u53c2\u6570\u4e2d\u53d6\u5143\u7d20\uff0c\u5e76\u8c03\u7528function<\/strong>\u3002\u5982\u679c\u4e00\u4e2aiterable\u53c2\u6570\u6bd4\u53e6\u5916\u7684iterable\u53c2\u6570\u8981\u77ed\uff0c\u5c06\u4ee5None\u6269\u5c55\u8be5\u53c2\u6570\u5143\u7d20\u3002<\/p>\n\n\n\n
def add(x,y,z):\r\n    return x,y,z\r\n\r\nlist1 = [1,2,3]\r\nlist2 = [1,2,3,4]\r\nlist3 = [1,2,3,4,5]\r\nres = map(add, list1, list2, list3)\r\nprint(res)\r\n\r\n\u8f93\u51fa\uff1a\r\n[(1, 1, 1), (2, 2, 2), (3, 3, 3), (None, 4, 4), (None, None, 5)]<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63cf\u8ff0 map() \u4f1a\u6839\u636e\u63d0\u4f9b\u7684\u51fd\u6570\u5bf9\u6307\u5b9a\u5e8f\u5217\u505a\u6620\u5c04\u3002 \u7b2c\u4e00\u4e2a\u53c2\u6570 function \u4ee5\u53c2\u6570\u5e8f\u5217\u4e2d\u7684\u6bcf … \u7ee7\u7eed\u9605\u8bfbpython\u4e2dmap()\u51fd\u6570<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/14521"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=14521"}],"version-history":[{"count":10,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/14521\/revisions"}],"predecessor-version":[{"id":14532,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/14521\/revisions\/14532"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=14521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=14521"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=14521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}