{"id":195,"date":"2020-04-27T02:29:34","date_gmt":"2020-04-27T02:29:34","guid":{"rendered":"http:\/\/feellikelearning.com\/?p=195"},"modified":"2020-04-27T03:25:08","modified_gmt":"2020-04-27T03:25:08","slug":"python-note","status":"publish","type":"post","link":"https:\/\/feellikelearning.com\/index.php\/2020\/04\/27\/python-note\/","title":{"rendered":"Python \u77e5\u8bc6\u5c0f\u7ed3"},"content":{"rendered":"\n<p>\u5982\u4f55\u5728Python\u8fd0\u884c\u73af\u5883\u91cc\u67e5\u770bPython\u7248\u672c\uff1f\u7528sys\u5c31\u53ef\u4ee5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>>>> import sys\n>>> sys.version_info\nsys.version_info(major=2, minor=7, micro=16, releaselevel='final', serial=0)<\/code><\/pre>\n\n\n\n<p>xrange\u548crange\u7684\u533a\u522b\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>>>> range(10)\n&#91;0, 1, 2, 3, 4, 5, 6, 7, 8, 9]\n>>> xrange(10)\nxrange(10)<\/code><\/pre>\n\n\n\n<p>range\u8fd4\u56de\u7684\u662f\u4e00\u4e2alist\uff0cxrange\u662f\u4e2aobject\u3002range\u76f4\u63a5\u5360\u7528\u4e00\u7247\u5185\u5b58\u3002xrange object\u53ef\u4ee5\u50cflist\u4e00\u6837\u4f7f\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>r = xrange(10)\n>>> r&#91;0]\n0\n>>> r&#91;1]\n1\n>>> r&#91;3]\n3\n>>> dir(r)\n&#91;'__class__', '__delattr__', '__doc__', '__format__', '__getattribute__', '__getitem__', '__hash__', '__init__', '__iter__', '__len__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']\n>>> len(r)\n10<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728Python\u8fd0\u884c\u73af\u5883\u91cc\u67e5\u770bPython\u7248\u672c\uff1f\u7528sys\u5c31\u53ef\u4ee5\u3002 xrange\u548crange\u7684\u533a\u522b\uff1f range\u8fd4\u56de\u7684\u662f\u4e00\u4e2alist\uff0cxrange\u662f\u4e2aobject\u3002range\u76f4\u63a5\u5360\u7528\u4e00\u7247\u5185\u5b58\u3002xrange object\u53ef\u4ee5\u50cflist\u4e00\u6837\u4f7f\u7528<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.10 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python \u77e5\u8bc6\u5c0f\u7ed3 | Feel Like Learning<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/feellikelearning.com\/index.php\/2020\/04\/27\/python-note\/?variant=zh-hant\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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