{"id":485,"date":"2018-04-07T12:37:39","date_gmt":"2018-04-07T04:37:39","guid":{"rendered":"https:\/\/yyshell.com\/?p=485"},"modified":"2018-05-01T14:08:10","modified_gmt":"2018-05-01T06:08:10","slug":"python%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86%e8%bf%9e%e8%bd%bd1-2","status":"publish","type":"post","link":"https:\/\/yyshell.com\/?p=485","title":{"rendered":"Python\u53d8\u91cf\u548c\u7b80\u5355\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"<p>\u4e0a\u4e00\u7bc7\u4e2d\u6211\u4eec\u7b80\u5355\u7684\u4ecb\u7ecd\u4e86python3\u7684\u5b89\u88c5\uff0c\u4ece\u8fd9\u4e00\u7bc7\u5f00\u59cb\u6211\u4eec\u5f00\u59cb\u4ecb\u7ecd\u53d8\u91cf\u548c\u7b80\u5355\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<p>\u5173\u4e8e\u53d8\u91cf\u547d\u540d\u7684\u539f\u5219\uff0c\u6839\u636e\u5b98\u65b9<a href=\"https:\/\/www.python.org\/dev\/peps\/pep-0008\">PEP8<\/a>\u7684\u89c4\u8303\uff0c\u6211\u4eec\u786e\u5b9a\u5982\u4e0b\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\u53d8\u91cf\u53ea\u80fd\u5305\u542b\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff0c\u53ef\u4ee5\u4ee5\u5b57\u6bcd\u6216\u4e0b\u5212\u7ebf\u5f00\u5934\uff0c\u4f46\u4e0d\u80fd\u4f7f\u6570\u5b57\u5f00\u5934\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u4e0d\u80fd\u5305\u542b\u7a7a\u683c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5212\u7ebf\u6765\u5206\u9694\u5176\u4e2d\u7684\u5355\u8bcd\u3002<\/li>\n<li>\u4e0d\u8981\u4f7f\u7528python\u7684\u5173\u952e\u5b57\u548c\u51fd\u6570\u540d\u505a\u53d8\u91cf\u540d\uff0c\u4f8b\u5982True\uff0cFalse\u7b49\u505a\u53d8\u91cf\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u65e2\u8981\u7b80\u77ed\uff0c\u53c8\u8981\u5177\u6709\u63cf\u8ff0\u6027\u3002\u4f8b\u5982name\u6bd4n\u597d\uff0cname_length\u6bd4length_of_persons_name\u597d\u3002<\/li>\n<li>\u614e\u7528\u5c0f\u5199\u5b57\u6bcdl\u548c\u5927\u5199\u5b57\u6bcdO\uff0c\u5bb9\u6613\u4e0e\u6570\u5b571\u548c0\u6df7\u6dc6\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u5b57\u6bcd\u5c3d\u91cf\u4f7f\u7528\u5c0f\u5199\uff0c\u4e0d\u8981\u4f7f\u7528\u5927\u5199\u5b57\u6bcd\u3002<\/li>\n<\/ol>\n<p>\u4f8b\u5982\uff0c\u6253\u5370\u67d0\u6761\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<pre class=\"lang:python decode:true \">message = \"Python is a powerful scripting language.\"\r\nprint(message)<\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cprint\u5728python2\u4e2d\u5c5e\u4e8e\u5173\u952e\u5b57\uff0c\u5728python3\u4e2d\u5c5e\u4e8e\u51fd\u6570\uff0c\u8fd9\u4e2a\u662f\u6bd4\u8f83\u663e\u8457\u7684\u533a\u522b\u70b9\u3002<\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4e00\u4e9b\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n<h3>\u5b57\u7b26\u4e32<\/h3>\n<p>\u5b57\u7b26\u4e32\u662f\u6700\u5e38\u89c1\uff0c\u4e5f\u662f\u975e\u5e38\u6709\u7528\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4f7f\u7528\u7684\u65b9\u5f0f\u6709\u5f88\u591a\u79cd\u3002\u5728Python\u4e2d\uff0c\u7528\u5f15\u53f7\u62ec\u8d77\u6765\u7684\u90fd\u662f\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u7528\u5355\u5f15\u53f7\uff0c\u4e5f\u53ef\u4ee5\u7528\u53cc\u5f15\u53f7\uff0c\u4f46\u6ce8\u610f\uff0c\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\u4e0d\u8981\u5f15\u8d77\u6b67\u4e49\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8216;I&#8217;m a student.&#8217;<\/p>\n<p>\u5c31\u4e0d\u662f\u5408\u6cd5\u7684\u5b57\u7b26\u4e32\uff0c\u56e0\u4e3a\u7a0b\u5e8f\u4e0d\u77e5\u9053\u4ece\u54ea\u91cc\u65ad\u53e5\u3002\u6539\u6210\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<p>&#8220;I&#8217;m a student.&#8221;<\/p>\n<p>\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u5e38\u89c1\u7684\u4e00\u4e9b\u65b9\u6cd5(method)\u6f14\u793a\uff1a<\/p>\n<pre class=\"lang:python decode:true \">#\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199\r\n&gt;&gt;&gt; \"hello world\".title()\r\n'Hello World'\r\n#\u8f6c\u6362\u5927\u5c0f\u5199\r\n&gt;&gt;&gt; \"Hello World\".upper()\r\n'HELLO WORLD'\r\n&gt;&gt;&gt; \"Hello World\".lower()\r\n'hello world'<\/pre>\n<p>\u5b98\u65b9\u94fe\u63a5\uff1a<a href=\"https:\/\/docs.python.org\/3.6\/library\/stdtypes.html#string-methods\">String Methods<\/a><\/p>\n<p>\u5b57\u7b26\u4e32\u62fc\u63a5<\/p>\n<p>messages = &#8220;Hello&#8221;<br \/>\ninfo = &#8220;World&#8221;<\/p>\n<p>\u52a0\u53f7\u62fc\u63a5\uff1a<br \/>\nprint(messages + info)<br \/>\n\u8f93\u51fa\u7ed3\u679c\uff1a<br \/>\nHelloWorld<br \/>\n\u9700\u8981\u52a0\u7a7a\u683c\u7684\u8bdd\uff0c\u4e2d\u95f4\u52a0\u4e0a&#8217; &#8216;\u7a7a\u683c\u3002<\/p>\n<p>\u9017\u53f7\u62fc\u63a5\uff1a<br \/>\nprint(messages , info)<br \/>\n\u8f93\u51fa\u7ed3\u679c\uff1a<br \/>\nHello World<br \/>\n\u8fd9\u4e2a\u9ed8\u8ba4\u662f\u52a0\u4e0a\u7a7a\u683c\u7684<\/p>\n<p>\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u62fc\u63a5\uff1a<br \/>\n\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6709\u51e0\u79cd\u65b9\u5f0f\uff0c\u6709\u4f20\u7edf\u7684%\u683c\u5f0f\u5316\u7684\u65b9\u6cd5\uff0c\u4e5f\u6709\u65b0\u5f0f\u7684f-string\u65b9\u6cd5\uff0c\u8fd9\u91cc\u6f14\u793a\u65b0\u7684\u65b9\u6cd5\uff1a<\/p>\n<pre class=\"lang:python decode:true \">age = 30\r\nprint(f\"My age is {age} years old.\")<\/pre>\n<p>\u5b98\u65b9<a href=\"https:\/\/docs.python.org\/3.6\/library\/stdtypes.html#printf-style-string-formatting\">\u53c2\u8003\u94fe\u63a5<\/a><\/p>\n<p>\u5bf9\u4e8e\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u6cd5join()<\/p>\n<pre class=\"lang:python decode:true \">&gt;&gt;&gt; parts = ['Is', 'Chicago', 'Not', 'Chicago?']\r\n&gt;&gt;&gt; ' '.join(parts)\r\n'Is Chicago Not Chicago?'\r\n&gt;&gt;&gt; ','.join(parts)\r\n'Is,Chicago,Not,Chicago?'\r\n&gt;&gt;&gt; ''.join(parts)\r\n'IsChicagoNotChicago?'<\/pre>\n<p>\u5b57\u7b26\u4e32\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\\t \\n\u6765\u8f93\u51fa\u5236\u8868\u7b26\u548c\u6362\u884c\u7b26\u3002<\/p>\n<p>\u5b57\u7b26\u4e32\u53bb\u9664\u7a7a\u767d\uff1a<\/p>\n<pre class=\"lang:python decode:true \">&gt;&gt;&gt; ' Python '.lstrip()\r\n'Python '\r\n&gt;&gt;&gt; ' Python '.rstrip()\r\n' Python'\r\n&gt;&gt;&gt; ' Python '.strip()\r\n'Python'<\/pre>\n<p>\u6570\u5b57\u7c7b\u578b\uff1a<\/p>\n<p>\u6570\u5b57\u7c7b\u578b\u53ef\u4ee5\u76f4\u63a5\u5728python\u4e2d\u4f7f\u7528\uff0c\u4f7f\u7528\u51fd\u6570str()\u53ef\u4ee5\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4e00\u7bc7\u4e2d\u6211\u4eec\u7b80\u5355\u7684\u4ecb\u7ecd\u4e86python3\u7684\u5b89\u88c5\uff0c\u4ece\u8fd9\u4e00\u7bc7\u5f00\u59cb\u6211\u4eec\u5f00\u59cb\u4ecb\u7ecd\u53d8\u91cf\u548c\u7b80\u5355<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[],"class_list":["post-485","post","type-post","status-publish","format-standard","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=485"}],"version-history":[{"count":7,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/485\/revisions"}],"predecessor-version":[{"id":496,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/485\/revisions\/496"}],"wp:attachment":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}