{"id":45002,"date":"2024-10-06T19:45:15","date_gmt":"2024-10-06T11:45:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/45002\/"},"modified":"2024-10-06T19:45:15","modified_gmt":"2024-10-06T11:45:15","slug":"python-%e5%af%a6%e7%8f%be%e5%ad%90%e7%b6%b2%e6%8e%a9%e7%a2%bc%e5%9c%b0%e5%9d%80%e8%88%87%e4%bd%8d%e9%95%b7%e7%9a%84%e7%9b%b8%e4%ba%92%e8%bd%89%e6%8f%9b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/45002\/","title":{"rendered":"Python \u5be6\u73fe\u5b50\u7db2\u63a9\u78bc\u5730\u5740\u8207\u4f4d\u9577\u7684\u76f8\u4e92\u8f49\u63db"},"content":{"rendered":"

Python \u5be6\u73fe\u5b50\u7db2\u63a9\u78bc\u5730\u5740\u8207\u4f4d\u9577\u7684\u76f8\u4e92\u8f49\u63db<\/h1>\n

\u5728\u7db2\u7d61\u6280\u8853\u4e2d\uff0c\u5b50\u7db2\u63a9\u78bc\u662f\u7528\u4f86\u5283\u5206\u7db2\u7d61\u548c\u4e3b\u6a5f\u7684\u4e00\u500b\u91cd\u8981\u6982\u5ff5\u3002\u5b83\u80fd\u5920\u5e6b\u52a9\u6211\u5011\u78ba\u5b9a\u4e00\u500bIP\u5730\u5740\u6240\u5c6c\u7684\u7db2\u7d61\u7bc4\u570d\u3002\u96a8\u8457Python\u7684\u666e\u53ca\uff0c\u8a31\u591a\u7db2\u7d61\u7ba1\u7406\u548c\u914d\u7f6e\u7684\u4efb\u52d9\u90fd\u53ef\u4ee5\u901a\u904e\u7de8\u7a0b\u4f86\u5be6\u73fe\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Python\u5be6\u73fe\u5b50\u7db2\u63a9\u78bc\u5730\u5740\u8207\u4f4d\u9577\u7684\u76f8\u4e92\u8f49\u63db\u3002<\/p>\n

\u5b50\u7db2\u63a9\u78bc\u8207\u4f4d\u9577\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u5b50\u7db2\u63a9\u78bc\u662f\u4e00\u500b32\u4f4d\u7684\u6578\u5b57\uff0c\u901a\u5e38\u4ee5\u56db\u500b\u5341\u9032\u5236\u6578\u5b57\u8868\u793a\uff0c\u4f8b\u5982\uff1a255.255.255.0\u3002\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u662f\u5c07IP\u5730\u5740\u5283\u5206\u70ba\u7db2\u7d61\u90e8\u5206\u548c\u4e3b\u6a5f\u90e8\u5206\u3002\u4f4d\u9577\u5247\u662f\u6307\u5b50\u7db2\u63a9\u78bc\u4e2d1\u7684\u4f4d\u6578\uff0c\u4f8b\u5982\uff0c255.255.255.0\u7684\u4f4d\u9577\u70ba24\uff0c\u56e0\u70ba\u524d24\u4f4d\u662f1\u3002<\/p>\n

\u5b50\u7db2\u63a9\u78bc\u8f49\u4f4d\u9577<\/h2>\n

\u8981\u5c07\u5b50\u7db2\u63a9\u78bc\u8f49\u63db\u70ba\u4f4d\u9577\uff0c\u6211\u5011\u53ef\u4ee5\u901a\u904e\u8a08\u7b97\u5b50\u7db2\u63a9\u78bc\u4e2d1\u7684\u6578\u91cf\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u9032\u884c\u6b64\u8f49\u63db\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n

def subnet_mask_to_prefix_length(subnet_mask):\n    # \u5c07\u5b50\u7db2\u63a9\u78bc\u8f49\u63db\u70ba\u4e8c\u9032\u5236\u5b57\u7b26\u4e32\n    binary_mask = ''.join(format(int(x), '08b') for x in subnet_mask.split('.'))\n    # \u8a08\u7b971\u7684\u6578\u91cf\n    prefix_length = binary_mask.count('1')\n    return prefix_length\n\n# \u793a\u4f8b\nsubnet_mask = \"255.255.255.0\"\nprint(f\"\u5b50\u7db2\u63a9\u78bc {subnet_mask} \u7684\u4f4d\u9577\u70ba: {subnet_mask_to_prefix_length(subnet_mask)}\")\n<\/code><\/pre>\n
\u4f4d\u9577\u8f49\u5b50\u7db2\u63a9\u78bc<\/h2>\n
\u76f8\u53cd\u5730\uff0c\u5c07\u4f4d\u9577\u8f49\u63db\u70ba\u5b50\u7db2\u63a9\u78bc\u5247\u9700\u8981\u6839\u64da\u4f4d\u9577\u751f\u6210\u76f8\u61c9\u7684\u5b50\u7db2\u63a9\u78bc\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u6b64\u529f\u80fd\u7684Python\u4ee3\u78bc\uff1a<\/p>\n
def prefix_length_to_subnet_mask(prefix_length):\n    # \u6839\u64da\u4f4d\u9577\u751f\u6210\u5b50\u7db2\u63a9\u78bc\n    mask = (1 << 32) - (1 <> 24) & 255}.{(mask >> 16) & 255}.{(mask >> 8) & 255}.{mask & 255}\"\n\n# \u793a\u4f8b\nprefix_length = 24\nprint(f\"\u4f4d\u9577 {prefix_length} \u7684\u5b50\u7db2\u63a9\u78bc\u70ba: {prefix_length_to_subnet_mask(prefix_length)}\")\n<\/code><\/pre>\n
\u5be6\u969b\u61c9\u7528<\/h2>\n
\u5728\u5be6\u969b\u7684\u7db2\u7d61\u7ba1\u7406\u4e2d\uff0c\u9019\u4e9b\u8f49\u63db\u529f\u80fd\u53ef\u4ee5\u5e6b\u52a9\u7db2\u7d61\u5de5\u7a0b\u5e2b\u5feb\u901f\u914d\u7f6e\u548c\u7ba1\u7406IP\u5730\u5740\u3002\u4f8b\u5982\uff0c\u5728\u8a2d\u7f6eVPS\u6216\u4f3a\u670d\u5668\u6642\uff0c\u4e86\u89e3\u5b50\u7db2\u63a9\u78bc\u548c\u4f4d\u9577\u4e4b\u9593\u7684\u8f49\u63db\u53ef\u4ee5\u5e6b\u52a9\u78ba\u4fdd\u7db2\u7d61\u7684\u6b63\u78ba\u914d\u7f6e\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528Python\u5be6\u73fe\u5b50\u7db2\u63a9\u78bc\u5730\u5740\u8207\u4f4d\u9577\u7684\u76f8\u4e92\u8f49\u63db\u3002\u9019\u4e9b\u57fa\u672c\u7684\u7db2\u7d61\u64cd\u4f5c\u5c0d\u65bc\u7db2\u7d61\u7ba1\u7406\u548c\u914d\u7f6e\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u5728\u672c\u5730\u7db2\u7d61\u9084\u662f\u96f2\u7aef\u74b0\u5883\u4e2d\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u80fd\u90fd\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u5982\u679c\u60a8\u5c0d\u65bcVPS\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u7684\u914d\u7f6e\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u7372\u53d6\u66f4\u591a\u95dc\u65bc\u9999\u6e2fVPS<\/a>\u548c\u4e91\u670d\u52a1\u5668<\/a>\u7684\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 Python \u5be6\u73fe\u5b50\u7db2\u63a9\u78bc\u5730\u5740\u8207\u4f4d\u9577\u7684\u76f8\u4e92\u8f49\u63db\uff0c\u7c21\u5316\u7db2\u7d61\u914d\u7f6e\u8207\u7ba1\u7406\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-45002","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=45002"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45002\/revisions"}],"predecessor-version":[{"id":45003,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45002\/revisions\/45003"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=45002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=45002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=45002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}