{"id":210,"date":"2018-12-12T14:21:53","date_gmt":"2018-12-12T06:21:53","guid":{"rendered":"http:\/\/www.subingkang.com\/?p=210"},"modified":"2018-12-13T19:21:57","modified_gmt":"2018-12-13T11:21:57","slug":"python%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84encode%e4%b8%8edecode%e7%a0%94%e7%a9%b6%e5%bf%83%e5%be%97-%e8%a7%a3%e5%86%b3%e4%b9%b1%e7%a0%81%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/subk.me\/?p=210","title":{"rendered":"Python\u5b57\u7b26\u4e32\u7684encode\u4e0edecode\u7814\u7a76\u5fc3\u5f97\u2014\u2014\u89e3\u51b3\u4e71\u7801\u95ee\u9898"},"content":{"rendered":"<ul>\n\n<li>\u4e3a\u4ec0\u4e48Python\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u4f1a\u51fa\u73b0\u5404\u5f0f\u5404\u6837\u7684\u4e71\u7801\u95ee\u9898\uff0c\u660e\u660e\u662f\u4e2d\u6587\u5b57\u7b26\u5374\u663e\u793a\u6210\u201c\/xe4\/xb8\/xad\/xe6\/x96\/x87\u201d\u7684\u5f62\u5f0f\uff1f<\/li>\n\n<li>\u4e3a\u4ec0\u4e48\u4f1a\u62a5\u9519\u201cUnicodeEncodeError: &#8216;ascii&#8217; codec can&#8217;t encode characters in position 0-1: ordinal not in range(128)\u201d\uff1f\u672c\u6587\u5c31\u6765\u7814\u7a76\u4e00\u4e0b\u8fd9\u4e2a\u95ee\u9898\u3002\n\u5b57\u7b26\u4e32\u5728Python\u5185\u90e8\u7684\u8868\u793a\u662funicode\u7f16\u7801\uff0c\u56e0\u6b64\uff0c\u5728\u505a\u7f16\u7801\u8f6c\u6362\u65f6\uff0c\u901a\u5e38\u9700\u8981\u4ee5unicode\u4f5c\u4e3a\u4e2d\u95f4\u7f16\u7801\uff0c\u5373\u5148\u5c06\u5176\u4ed6\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u89e3\u7801\uff08decode\uff09\u6210unicode\uff0c\u518d\u4eceunicode\u7f16\u7801\uff08encode\uff09\u6210\u53e6\u4e00\u79cd\u7f16\u7801\u3002<\/li>\n<\/ul>\n<h2 id=\"decode\u7684\u4f5c\u7528\">decode\u7684\u4f5c\u7528<\/h2>\n<p>\u5c06\u5176\u4ed6\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u6210unicode\u7f16\u7801\uff0c\u5982str1.decode(&#8216;gb2312&#8217;)\uff0c\u8868\u793a\u5c06gb2312\u7f16\u7801\u7684\u5b57\u7b26\u4e32str1\u8f6c\u6362\u6210unicode\u7f16\u7801\u3002<\/p>\n<h2 id=\"encode\u7684\u4f5c\u7528\">encode\u7684\u4f5c\u7528<\/h2>\n<p>\u5c06unicode\u7f16\u7801\u8f6c\u6362\u6210\u5176\u4ed6\u7f16\u7801\u7684\u5b57\u7b26\u4e32\uff0c\u5982str2.encode(&#8216;gb2312&#8217;)\uff0c\u8868\u793a\u5c06unicode\u7f16\u7801\u7684\u5b57\u7b26\u4e32str2\u8f6c\u6362\u6210gb2312\u7f16\u7801\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u8f6c\u7801\u7684\u65f6\u5019\u4e00\u5b9a\u8981\u5148\u641e\u660e\u767d\uff0c\u5b57\u7b26\u4e32str\u662f\u4ec0\u4e48\u7f16\u7801\uff0c\u7136\u540edecode\u6210unicode\uff0c\u7136\u540e\u518dencode\u6210\u5176\u4ed6\u7f16\u7801<\/p>\n<p><strong><em>\u4ee3\u7801\u4e2d\u5b57\u7b26\u4e32\u7684\u9ed8\u8ba4\u7f16\u7801\u4e0e\u4ee3\u7801\u6587\u4ef6\u672c\u8eab\u7684\u7f16\u7801\u4e00\u81f4<\/em><\/strong><\/p>\n<p>\u5982\uff1as=&#8217;\u4e2d\u6587&#8217;<\/p>\n<ul>\n\n<li>\u5982\u679c\u662f\u5728utf8\u7684\u6587\u4ef6\u4e2d\uff0c\u8be5\u5b57\u7b26\u4e32\u5c31\u662futf8\u7f16\u7801\uff0c\u5982\u679c\u662f\u5728gb2312\u7684\u6587\u4ef6\u4e2d\uff0c\u5219\u5176\u7f16\u7801\u4e3agb2312\u3002<\/li>\n\n<li>\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8981\u8fdb\u884c\u7f16\u7801\u8f6c\u6362\uff0c\u90fd\u9700\u8981\u5148\u7528decode\u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u6210unicode\u7f16\u7801\uff0c\u518d\u4f7f\u7528encode\u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u6210\u5176\u4ed6\u7f16\u7801\u3002\u901a\u5e38\uff0c\u5728\u6ca1\u6709\u6307\u5b9a\u7279\u5b9a\u7684\u7f16\u7801\u65b9\u5f0f\u65f6\uff0c\u90fd\u662f\u4f7f\u7528\u7684\u7cfb\u7edf\u9ed8\u8ba4\u7f16\u7801\u521b\u5efa\u7684\u4ee3\u7801\u6587\u4ef6\u3002\n\u5982\u679c\u5b57\u7b26\u4e32\u662f\u8fd9\u6837\u5b9a\u4e49\uff1as=u&#8217;\u4e2d\u6587&#8217;\n\u5219\u8be5\u5b57\u7b26\u4e32\u7684\u7f16\u7801\u5c31\u88ab\u6307\u5b9a\u4e3aunicode\u4e86\uff0c\u5373python\u7684\u5185\u90e8\u7f16\u7801\uff0c\u800c\u4e0e\u4ee3\u7801\u6587\u4ef6\u672c\u8eab\u7684\u7f16\u7801\u65e0\u5173\u3002\n\u56e0\u6b64\uff0c\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\u505a\u7f16\u7801\u8f6c\u6362\uff0c\u53ea\u9700\u8981\u76f4\u63a5\u4f7f\u7528encode\u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u6210\u6307\u5b9a\u7f16\u7801\u5373\u53ef\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4e00\u4e2a\u5b57\u7b26\u4e32\u5df2\u7ecf\u662funicode\u4e86\uff0c\u518d\u8fdb\u884c\u89e3\u7801\u5219\u5c06\u51fa\u9519\uff0c\u56e0\u6b64\u901a\u5e38\u8981\u5bf9\u5176\u7f16\u7801\u65b9\u5f0f\u662f\u5426\u4e3aunicode\u8fdb\u884c\u5224\u65ad\uff1a\nisinstance(s, unicode) #\u7528\u6765\u5224\u65ad\u662f\u5426\u4e3aunicode<\/p>\n<p>\u7528\u975eunicode\u7f16\u7801\u5f62\u5f0f\u7684str\u6765encode\u4f1a\u62a5\u9519<\/p>\n<p>\u5982\u4f55\u83b7\u5f97\u7cfb\u7edf\u7684\u9ed8\u8ba4\u7f16\u7801\uff1f<\/p>\n<pre>#!\/usr\/bin\/env python\n#coding=utf-8\nimport sys\nprint sys.getdefaultencoding()<\/pre>\n<p>\u8be5\u6bb5\u7a0b\u5e8f\u5728\u82f1\u6587WindowsXP\u4e0a\u8f93\u51fa\u4e3a\uff1aascii<\/p>\n<p>\u5728\u67d0\u4e9bIDE\u4e2d\uff0c\u5b57\u7b26\u4e32\u7684\u8f93\u51fa\u603b\u662f\u51fa\u73b0\u4e71\u7801\uff0c\u751a\u81f3\u9519\u8bef\uff0c\u5176\u5b9e\u662f\u7531\u4e8eIDE\u7684\u7ed3\u679c\u8f93\u51fa\u63a7\u5236\u53f0\u81ea\u8eab\u4e0d\u80fd\u663e\u793a\u5b57\u7b26\u4e32\u7684\u7f16\u7801\uff0c\u800c\u4e0d\u662f\u7a0b\u5e8f\u672c\u8eab\u7684\u95ee\u9898\u3002\n\u5982\u5728UliPad\u4e2d\u8fd0\u884c\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>s=u&#8221;\u4e2d\u6587&#8221;\nprint s<\/p>\n<p>\u4f1a\u63d0\u793a\uff1aUnicodeEncodeError: &#8216;ascii&#8217; codec can&#8217;t encode characters in position 0-1: ordinal not in range(128)\u3002\u8fd9\u662f\u56e0\u4e3aUliPad\u5728\u82f1\u6587WindowsXP\u4e0a\u7684\u63a7\u5236\u53f0\u4fe1\u606f\u8f93\u51fa\u7a97\u53e3\u662f\u6309\u7167ascii\u7f16\u7801\u8f93\u51fa\u7684\uff08\u82f1\u6587\u7cfb\u7edf\u7684\u9ed8\u8ba4\u7f16\u7801\u662fascii\uff09\uff0c\u800c\u4e0a\u9762\u4ee3\u7801\u4e2d\u7684\u5b57\u7b26\u4e32\u662fUnicode\u7f16\u7801\u7684\uff0c\u6240\u4ee5\u8f93\u51fa\u65f6\u4ea7\u751f\u4e86\u9519\u8bef\u3002<\/p>\n<p>\u5c06\u6700\u540e\u4e00\u53e5\u6539\u4e3a\uff1aprint s.encode(&#8216;gb2312&#8217;)<\/p>\n<p>\u5219\u80fd\u6b63\u786e\u8f93\u51fa\u201c\u4e2d\u6587\u201d\u4e24\u4e2a\u5b57\u3002<\/p>\n<p>\u82e5\u6700\u540e\u4e00\u53e5\u6539\u4e3a\uff1aprint s.encode(&#8216;utf8&#8217;)<\/p>\n<p>\u5219\u8f93\u51fa\uff1a\/xe4\/xb8\/xad\/xe6\/x96\/x87\uff0c\u8fd9\u662f\u63a7\u5236\u53f0\u4fe1\u606f\u8f93\u51fa\u7a97\u53e3\u6309\u7167ascii\u7f16\u7801\u8f93\u51fautf8\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u7684\u7ed3\u679c\u3002<\/p>\n<p>unicode(str,&#8217;gb2312&#8242;)\u4e0estr.decode(&#8216;gb2312&#8217;)\u662f\u4e00\u6837\u7684\uff0c\u90fd\u662f\u5c06gb2312\u7f16\u7801\u7684str\u8f6c\u4e3aunicode\u7f16\u7801<\/p>\n<p>\u4f7f\u7528str.<strong>class<\/strong>\u53ef\u4ee5\u67e5\u770bstr\u7684\u7f16\u7801\u5f62\u5f0f<\/p>\n<p>\u539f\u7406\u8bf4\u4e86\u534a\u5929\uff0c\u6700\u540e\u6765\u4e2a\u5305\u6cbb\u767e\u75c5\u7684\u5427\uff1a<\/p>\n<pre>#!\/usr\/bin\/env python\n#coding=utf-8\ns=\"\u4e2d\u6587\"\n\nif isinstance(s, unicode):\n#s=u\"\u4e2d\u6587\"\nprint s.encode('gb2312')\nelse:\n#s=\"\u4e2d\u6587\"\nprint s.decode('utf-8').encode('gb2312')<\/pre>","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4ec0\u4e48Python\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u4f1a\u51fa\u73b0\u5404\u5f0f\u5404\u6837\u7684\u4e71\u7801\u95ee\u9898\uff0c\u660e\u660e\u662f\u4e2d\u6587\u5b57\u7b26\u5374\u663e\u793a\u6210\u201c\/xe4\/xb8\/xad\/xe6 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-210","post","type-post","status-publish","format-standard","hentry","category-it"],"_links":{"self":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=210"}],"version-history":[{"count":4,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/210\/revisions"}],"predecessor-version":[{"id":215,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/210\/revisions\/215"}],"wp:attachment":[{"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}