{"id":4135,"date":"2022-03-19T21:35:52","date_gmt":"2022-03-19T13:35:52","guid":{"rendered":"https:\/\/egonlin.com\/?p=4135"},"modified":"2022-04-11T18:52:48","modified_gmt":"2022-04-11T10:52:48","slug":"%e7%ac%ac%e4%ba%94%e7%af%87%ef%bc%9a%e8%a3%85%e9%a5%b0%e5%99%a8","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=4135","title":{"rendered":"\u7b2c\u4e94\u7bc7\uff1a\u88c5\u9970\u5668"},"content":{"rendered":"<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u88c5\u9970\u56681.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u88c5\u9970\u56681.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h1>\u4e00 \u88c5\u9970\u5668\u4ecb\u7ecd<\/h1>\n<h2>1.1 \u4e3a\u4f55\u8981\u7528\u88c5\u9970\u5668<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe32.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe32.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u8f6f\u4ef6\u7684\u8bbe\u8ba1\u5e94\u8be5\u9075\u5faa\u5f00\u653e\u5c01\u95ed\u539f\u5219\uff0c\u5373\u5bf9\u6269\u5c55\u662f\u5f00\u653e\u7684\uff0c\u800c\u5bf9\u4fee\u6539\u662f\u5c01\u95ed\u7684\u3002\u5bf9\u6269\u5c55\u5f00\u653e\uff0c\u610f\u5473\u7740\u6709\u65b0\u7684\u9700\u6c42\u6216\u53d8\u5316\u65f6\uff0c\u53ef\u4ee5\u5bf9\u73b0\u6709\u4ee3\u7801\u8fdb\u884c\u6269\u5c55\uff0c\u4ee5\u9002\u5e94\u65b0\u7684\u60c5\u51b5\u3002\u5bf9\u4fee\u6539\u5c01\u95ed\uff0c\u610f\u5473\u7740\u5bf9\u8c61\u4e00\u65e6\u8bbe\u8ba1\u5b8c\u6210\uff0c\u5c31\u53ef\u4ee5\u72ec\u7acb\u5b8c\u6210\u5176\u5de5\u4f5c\uff0c\u800c\u4e0d\u8981\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<p>\u8f6f\u4ef6\u5305\u542b\u7684\u6240\u6709\u529f\u80fd\u7684\u6e90\u4ee3\u7801\u4ee5\u53ca\u8c03\u7528\u65b9\u5f0f\uff0c\u90fd\u5e94\u8be5\u907f\u514d\u4fee\u6539\uff0c\u5426\u5219\u4e00\u65e6\u6539\u9519\uff0c\u5219\u6781\u6709\u53ef\u80fd\u4ea7\u751f\u8fde\u9501\u53cd\u5e94\uff0c\u6700\u7ec8\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\uff0c\u800c\u5bf9\u4e8e\u4e0a\u7ebf\u540e\u7684\u8f6f\u4ef6\uff0c\u65b0\u9700\u6c42\u6216\u8005\u53d8\u5316\u53c8\u5c42\u51fa\u4e0d\u7a77\uff0c\u6211\u4eec\u5fc5\u987b\u4e3a\u7a0b\u5e8f\u63d0\u4f9b\u6269\u5c55\u7684\u53ef\u80fd\u6027\uff0c\u8fd9\u5c31\u7528\u5230\u4e86\u88c5\u9970\u5668\u3002<\/p>\n<h2>1.2 \u4ec0\u4e48\u662f\u88c5\u9970\u5668<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe33.jpeg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe33.jpeg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u2019\u88c5\u9970\u2019\u4ee3\u6307\u4e3a\u88ab\u88c5\u9970\u5bf9\u8c61\u6dfb\u52a0\u65b0\u7684\u529f\u80fd\uff0c\u2019\u5668\u2019\u4ee3\u6307\u5668\u5177\/\u5de5\u5177\uff0c\u88c5\u9970\u5668\u4e0e\u88ab\u88c5\u9970\u7684\u5bf9\u8c61\u5747\u53ef\u4ee5\u662f\u4efb\u610f\u53ef\u8c03\u7528\u5bf9\u8c61\u3002\u6982\u62ec\u5730\u8bb2\uff0c\u88c5\u9970\u5668\u7684\u4f5c\u7528\u5c31\u662f\u5728\u4e0d\u4fee\u6539\u88ab\u88c5\u9970\u5bf9\u8c61\u6e90\u4ee3\u7801\u548c\u8c03\u7528\u65b9\u5f0f\u7684\u524d\u63d0\u4e0b\u4e3a\u88ab\u88c5\u9970\u5bf9\u8c61\u6dfb\u52a0\u989d\u5916\u7684\u529f\u80fd\u3002\u88c5\u9970\u5668\u7ecf\u5e38\u7528\u4e8e\u6709\u5207\u9762\u9700\u6c42\u7684\u573a\u666f\uff0c\u6bd4\u5982\uff1a\u63d2\u5165\u65e5\u5fd7\u3001\u6027\u80fd\u6d4b\u8bd5\u3001\u4e8b\u52a1\u5904\u7406\u3001\u7f13\u5b58\u3001\u6743\u9650\u6821\u9a8c\u7b49\u5e94\u7528\u573a\u666f\uff0c\u88c5\u9970\u5668\u662f\u89e3\u51b3\u8fd9\u7c7b\u95ee\u9898\u7684\u7edd\u4f73\u8bbe\u8ba1\uff0c\u6709\u4e86\u88c5\u9970\u5668\uff0c\u5c31\u53ef\u4ee5\u62bd\u79bb\u51fa\u5927\u91cf\u4e0e\u51fd\u6570\u529f\u80fd\u672c\u8eab\u65e0\u5173\u7684\u96f7\u540c\u4ee3\u7801\u5e76\u7ee7\u7eed\u91cd\u7528\u3002<\/p>\n<p>\u63d0\u793a\uff1a\u53ef\u8c03\u7528\u5bf9\u8c61\u6709\u51fd\u6570\uff0c\u65b9\u6cd5\u6216\u8005\u7c7b\uff0c\u6b64\u5904\u6211\u4eec\u5355\u4ee5\u672c\u7ae0\u4e3b\u9898\u51fd\u6570\u4e3a\u4f8b\uff0c\u6765\u4ecb\u7ecd\u51fd\u6570\u88c5\u9970\u5668\uff0c\u5e76\u4e14\u88ab\u88c5\u9970\u7684\u5bf9\u8c61\u4e5f\u662f\u51fd\u6570\u3002<\/p>\n<h1>\u4e8c \u88c5\u9970\u5668\u7684\u5b9e\u73b0<\/h1>\n<p>\u51fd\u6570\u88c5\u9970\u5668\u5206\u4e3a\uff1a\u65e0\u53c2\u88c5\u9970\u5668\u548c\u6709\u53c2\u88c5\u9970\u4e24\u79cd\uff0c\u4e8c\u8005\u7684\u5b9e\u73b0\u539f\u7406\u4e00\u6837\uff0c\u90fd\u662f\u2019\u51fd\u6570\u5d4c\u5957+\u95ed\u5305+\u51fd\u6570\u5bf9\u8c61\u2019\u7684\u7ec4\u5408\u4f7f\u7528\u7684\u4ea7\u7269\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe35.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe35.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h2>2.1 \u65e0\u53c2\u88c5\u9970\u5668\u7684\u5b9e\u73b0<\/h2>\n<p>\u5982\u679c\u60f3\u4e3a\u4e0b\u8ff0\u51fd\u6570\u6dfb\u52a0\u7edf\u8ba1\u5176\u6267\u884c\u65f6\u95f4\u7684\u529f\u80fd<\/p>\n<pre><code class=\"language-python\">import time\n\ndef index():\n    time.sleep(3)\n    print(&#039;Welcome to the index page\u2019)\n    return 200\n\nindex() #\u51fd\u6570\u6267\u884c<\/code><\/pre>\n<p>\u9075\u5faa\u4e0d\u4fee\u6539\u88ab\u88c5\u9970\u5bf9\u8c61\u6e90\u4ee3\u7801\u7684\u539f\u5219\uff0c\u6211\u4eec\u60f3\u5230\u7684\u89e3\u51b3\u65b9\u6cd5\u53ef\u80fd\u662f\u8fd9\u6837<\/p>\n<pre><code class=\"language-python\">start_time=time.time()\nindex() #\u51fd\u6570\u6267\u884c\nstop_time=time.time()\nprint(&#039;run time is %s&#039; %(stop_time-start_time))<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe36.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe36.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u8003\u8651\u5230\u8fd8\u6709\u53ef\u80fd\u8981\u7edf\u8ba1\u5176\u4ed6\u51fd\u6570\u7684\u6267\u884c\u65f6\u95f4\uff0c\u4e8e\u662f\u6211\u4eec\u5c06\u5176\u505a\u6210\u4e00\u4e2a\u5355\u72ec\u7684\u5de5\u5177\uff0c\u51fd\u6570\u4f53\u9700\u8981\u5916\u90e8\u4f20\u5165\u88ab\u88c5\u9970\u7684\u51fd\u6570\u4ece\u800c\u8fdb\u884c\u8c03\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u53c2\u6570\u7684\u5f62\u5f0f\u4f20\u5165<\/p>\n<pre><code class=\"language-python\">def wrapper(func): # \u901a\u8fc7\u53c2\u6570\u63a5\u6536\u5916\u90e8\u7684\u503c\n    start_time=time.time()\n    res=func()\n    stop_time=time.time()\n    print(&#039;run time is %s&#039; %(stop_time-start_time))\n    return res<\/code><\/pre>\n<p>\u4f46\u4e4b\u540e\u51fd\u6570\u7684\u8c03\u7528\u65b9\u5f0f\u90fd\u9700\u8981\u7edf\u4e00\u6539\u6210<\/p>\n<pre><code class=\"language-python\">wrapper(index)\nwrapper(\u5176\u4ed6\u51fd\u6570)<\/code><\/pre>\n<p>\u8fd9\u4fbf\u8fdd\u53cd\u4e86\u4e0d\u80fd\u4fee\u6539\u88ab\u88c5\u9970\u5bf9\u8c61\u8c03\u7528\u65b9\u5f0f\u7684\u539f\u5219\uff0c\u4e8e\u662f\u6211\u4eec\u6362\u4e00\u79cd\u4e3a\u51fd\u6570\u4f53\u4f20\u503c\u7684\u65b9\u5f0f\uff0c\u5373\u5c06\u503c\u5305\u7ed9\u51fd\u6570\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">def timer(func):\n    def wrapper(): # \u5f15\u7528\u5916\u90e8\u4f5c\u7528\u57df\u7684\u53d8\u91cffunc\n        start_time=time.time()\n        res=func()\n        stop_time=time.time()\n        print(&#039;run time is %s&#039; %(stop_time-start_time))\n        return res\n    return wrapper<\/code><\/pre>\n<p>\u8fd9\u6837\u6211\u4eec\u4fbf\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u88ab\u88c5\u9970\u51fd\u6570\u6e90\u4ee3\u7801\u548c\u8c03\u7528\u65b9\u5f0f\u7684\u524d\u63d0\u4e0b\u4e3a\u5176\u52a0\u4e0a\u7edf\u8ba1\u65f6\u95f4\u7684\u529f\u80fd\uff0c\u53ea\u4e0d\u8fc7\u9700\u8981\u4e8b\u5148\u6267\u884c\u4e00\u6b21timer\u5c06\u88ab\u88c5\u9970\u7684\u51fd\u6570\u4f20\u5165\uff0c\u8fd4\u56de\u4e00\u4e2a\u95ed\u5305\u51fd\u6570wrapper\u91cd\u65b0\u8d4b\u503c\u7ed9\u53d8\u91cf\u540d \/\u51fd\u6570\u540dindex\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">index=timer(index)  #\u5f97\u5230index=wrapper\uff0cwrapper\u643a\u5e26\u5bf9\u5916\u4f5c\u7528\u57df\u7684\u5f15\u7528\uff1afunc=\u539f\u59cb\u7684index\nindex() # \u6267\u884c\u7684\u662fwrapper()\uff0c\u5728wrapper\u7684\u51fd\u6570\u4f53\u5185\u518d\u6267\u884c\u6700\u539f\u59cb\u7684index<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe39.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe39.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u81f3\u6b64\u6211\u4eec\u4fbf\u5b9e\u73b0\u4e86\u4e00\u4e2a\u65e0\u53c2\u88c5\u9970\u5668timer\uff0c\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u88ab\u88c5\u9970\u5bf9\u8c61index\u6e90\u4ee3\u7801\u548c\u8c03\u7528\u65b9\u5f0f\u7684\u524d\u63d0\u4e0b\u4e3a\u5176\u52a0\u4e0a\u65b0\u529f\u80fd\u3002\u4f46\u6211\u4eec\u5ffd\u7565\u4e86\u82e5\u88ab\u88c5\u9970\u7684\u51fd\u6570\u662f\u4e00\u4e2a\u6709\u53c2\u51fd\u6570\uff0c\u4fbf\u4f1a\u629b\u51fa\u5f02\u5e38<\/p>\n<pre><code class=\"language-python\">def home(name):\n    time.sleep(5)\n    print(&#039;Welcome to the home page&#039;,name)\n\nhome=timer(home)\nhome(&#039;egon&#039;)\n#\u629b\u51fa\u5f02\u5e38\nTypeError: wrapper() takes 0 positional arguments but 1 was given <\/code><\/pre>\n<p>\u4e4b\u6240\u4ee5\u4f1a\u629b\u51fa\u5f02\u5e38\uff0c\u662f\u56e0\u4e3ahome(\u2018egon\u2019)\u8c03\u7528\u7684\u5176\u5b9e\u662fwrapper(\u2018egon\u2019)\uff0c\u800c\u51fd\u6570wrapper\u6ca1\u6709\u53c2\u6570\u3002wrapper\u51fd\u6570\u63a5\u6536\u7684\u53c2\u6570\u5176\u5b9e\u662f\u7ed9\u6700\u539f\u59cb\u7684func\u7528\u7684\uff0c\u4e3a\u4e86\u80fd\u6ee1\u8db3\u88ab\u88c5\u9970\u51fd\u6570\u53c2\u6570\u7684\u6240\u6709\u60c5\u51b5\uff0c\u4fbf\u7528\u4e0a*args+**kwargs\u7ec4\u5408\uff08\u89c14.3\u5c0f\u8282\uff09,\u4e8e\u662f\u4fee\u6b63\u88c5\u9970\u5668timer\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">def timer(func):\n    def wrapper(*args,**kwargs):\n        start_time=time.time()\n        res=func(*args,**kwargs)\n        stop_time=time.time()\n        print(&#039;run time is %s&#039; %(stop_time-start_time))\n        return res\n    return wrapper<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe37.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe37.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u6b64\u65f6\u6211\u4eec\u5c31\u53ef\u4ee5\u7528timer\u6765\u88c5\u9970\u5e26\u53c2\u6570\u6216\u4e0d\u5e26\u53c2\u6570\u7684\u51fd\u6570\u4e86\uff0c\u4f46\u662f\u4e3a\u4e86\u7b80\u6d01\u800c\u4f18\u96c5\u5730\u4f7f\u7528\u88c5\u9970\u5668\uff0cPython\u63d0\u4f9b\u4e86\u4e13\u95e8\u7684\u88c5\u9970\u5668\u8bed\u6cd5\u6765\u53d6\u4ee3index=timer(index)\u7684\u5f62\u5f0f\uff0c\u9700\u8981\u5728\u88ab\u88c5\u9970\u5bf9\u8c61\u7684\u6b63\u4e0a\u65b9\u5355\u72ec\u4e00\u884c\u6dfb\u52a0@timer,\u5f53\u89e3\u91ca\u5668\u89e3\u91ca\u5230@timer\u65f6\u5c31\u4f1a\u8c03\u7528timer\u51fd\u6570\uff0c\u4e14\u628a\u5b83\u6b63\u4e0b\u65b9\u7684\u51fd\u6570\u540d\u5f53\u505a\u5b9e\u53c2\u4f20\u5165\uff0c\u7136\u540e\u5c06\u8fd4\u56de\u7684\u7ed3\u679c\u91cd\u65b0\u8d4b\u503c\u7ed9\u539f\u51fd\u6570\u540d<\/p>\n<pre><code class=\"language-python\">@timer # index=timer(index)\ndef index():\n    time.sleep(3)\n    print(&#039;Welcome to the index page&#039;)\n    return 200\n@timer # index=timer(home)          def home(name):\n    time.sleep(5)\n    print(&#039;Welcome to the home page\u2019,name)<\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u6709\u591a\u4e2a\u88c5\u9970\u5668\uff0c\u53ef\u4ee5\u53e0\u52a0\u591a\u4e2a<\/p>\n<pre><code class=\"language-python\">@deco3\n@deco2\n@deco1\ndef index():\n    pass<\/code><\/pre>\n<p>\u53e0\u52a0\u591a\u4e2a\u88c5\u9970\u5668\u4e5f\u65e0\u7279\u6b8a\u4e4b\u5904\uff0c\u4e0a\u8ff0\u4ee3\u7801\u8bed\u4e49\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">index=deco3(deco2(deco1(index)))<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe38.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe38.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h2>2.2 \u6709\u53c2\u88c5\u9970\u5668\u7684\u5b9e\u73b0<\/h2>\n<p>\u4e86\u89e3\u65e0\u53c2\u88c5\u9970\u5668\u7684\u5b9e\u73b0\u539f\u7406\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u518d\u5b9e\u73b0\u4e00\u4e2a\u7528\u6765\u4e3a\u88ab\u88c5\u9970\u5bf9\u8c61\u6dfb\u52a0\u8ba4\u8bc1\u529f\u80fd\u7684\u88c5\u9970\u5668\uff0c\u5b9e\u73b0\u7684\u57fa\u672c\u5f62\u5f0f\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">def deco(func):\n    def wrapper(*args,**kwargs):\n        \u7f16\u5199\u57fa\u4e8e\u6587\u4ef6\u7684\u8ba4\u8bc1,\u8ba4\u8bc1\u901a\u8fc7\u5219\u6267\u884cres=func(*args,**kwargs),\u5e76\u8fd4\u56deres\n    return wrapper<\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u63d0\u4f9b\u591a\u79cd\u4e0d\u540c\u7684\u8ba4\u8bc1\u65b9\u5f0f\u4ee5\u4f9b\u9009\u62e9\uff0c\u5355\u4ecewrapper\u51fd\u6570\u7684\u5b9e\u73b0\u89d2\u5ea6\u6539\u5199\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">  def deco(func):\n        def wrapper(*args,**kwargs):\n            if driver == &#039;file&#039;:\n                \u7f16\u5199\u57fa\u4e8e\u6587\u4ef6\u7684\u8ba4\u8bc1,\u8ba4\u8bc1\u901a\u8fc7\u5219\u6267\u884cres=func(*args,**kwargs),\u5e76\u8fd4\u56deres\n            elif driver == &#039;mysql&#039;:\n                \u7f16\u5199\u57fa\u4e8emysql\u8ba4\u8bc1,\u8ba4\u8bc1\u901a\u8fc7\u5219\u6267\u884cres=func(*args,**kwargs),\u5e76\u8fd4\u56deres\n        return wrapper<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe40.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe40.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u51fd\u6570wrapper\u9700\u8981\u4e00\u4e2adriver\u53c2\u6570\uff0c\u800c\u51fd\u6570deco\u4e0ewrapper\u7684\u53c2\u6570\u90fd\u6709\u5176\u7279\u5b9a\u7684\u529f\u80fd\uff0c\u4e0d\u80fd\u7528\u6765\u63a5\u53d7\u5176\u4ed6\u7c7b\u522b\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u5728deco\u7684\u5916\u90e8\u518d\u5305\u4e00\u5c42\u51fd\u6570auth\uff0c\u7528\u6765\u4e13\u95e8\u63a5\u53d7\u989d\u5916\u7684\u53c2\u6570\uff0c\u8fd9\u6837\u4fbf\u4fdd\u8bc1\u4e86\u5728auth\u51fd\u6570\u5185\u65e0\u8bba\u591a\u5c11\u5c42\u90fd\u53ef\u4ee5\u5f15\u7528\u5230<\/p>\n<pre><code class=\"language-python\">def auth(driver):\n    def deco(func):\n        \u2026\u2026\n    return deco<\/code><\/pre>\n<p>\u6b64\u65f6\u6211\u4eec\u5c31\u5b9e\u73b0\u4e86\u4e00\u4e2a\u6709\u53c2\u88c5\u9970\u5668\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">#\u5148\u8c03\u7528auth_type(driver='file')\uff0c\u5f97\u5230@deco\uff0cdeco\u662f\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\uff0c\u5305\u542b\u4e86\u5bf9\u5916\u90e8\u4f5c\u7528\u57df\u540d\u5b57driver\u7684\u5f15\u7528\uff0c@deco\u7684\u8bed\u6cd5\u610f\u4e49\u4e0e\u65e0\u53c2\u88c5\u9970\u5668\u4e00\u6837\n@auth(driver='file')\ndef index():\n    pass\n\n@auth(driver='mysql')\ndef home():\n    pass<\/code><\/pre>\n<p>\u53ef\u4ee5\u4f7f\u7528help(\u51fd\u6570\u540d)\u6765\u67e5\u770b\u51fd\u6570\u7684\u6587\u6863\u6ce8\u91ca\uff0c\u672c\u8d28\u5c31\u662f\u67e5\u770b\u51fd\u6570\u7684<strong>doc<\/strong>\u5c5e\u6027\uff0c\u4f46\u5bf9\u4e8e\u88ab\u88c5\u9970\u4e4b\u540e\u7684\u51fd\u6570\uff0c\u67e5\u770b\u6587\u6863\u6ce8\u91ca<\/p>\n<pre><code class=\"language-python\">@timer\ndef home(name):\n    &#039;&#039;&#039;\n    home page function\n    :param name: str\n    :return: None\n    &#039;&#039;&#039;\n    time.sleep(5)\n    print(&#039;Welcome to the home page&#039;,name)\n\nprint(help(home))\n&#039;&#039;&#039;\n\u6253\u5370\u7ed3\u679c\uff1a\n\nHelp on function wrapper in module __main__:\n\nwrapper(*args, **kwargs)\n\nNone\n&#039;&#039;&#039;<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe41.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe41.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u5728\u88ab\u88c5\u9970\u4e4b\u540ehome=wrapper,\u67e5\u770bhome.<strong>name<\/strong>\u4e5f\u53ef\u4ee5\u53d1\u73b0home\u7684\u51fd\u6570\u540d\u786e\u5b9e\u662fwrapper\uff0c\u60f3\u8981\u4fdd\u7559\u539f\u51fd\u6570\u7684\u6587\u6863\u548c\u51fd\u6570\u540d\u5c5e\u6027\uff0c\u9700\u8981\u4fee\u6b63\u88c5\u9970\u5668<\/p>\n<pre><code class=\"language-python\">def timer(func):\n    def wrapper(*args,**kwargs):\n        start_time=time.time()\n        res=func(*args,**kwargs)\n        stop_time=time.time()\n        print(&#039;run time is %s&#039; %(stop_time-start_time))\n        return res\n    wrapper.__doc__=func.__doc__\n    wrapper.__name__=func.__name__\n    return wrapper<\/code><\/pre>\n<p>\u6309\u7167\u4e0a\u8ff0\u65b9\u5f0f\u6765\u5b9e\u73b0\u4fdd\u7559\u539f\u51fd\u6570\u5c5e\u6027\u8fc7\u4e8e\u9ebb\u70e6\uff0cfunctools\u6a21\u5757\u4e0b\u63d0\u4f9b\u4e00\u4e2a\u88c5\u9970\u5668wraps\u4e13\u95e8\u7528\u6765\u5e2e\u6211\u4eec\u5b9e\u73b0\u8fd9\u4ef6\u4e8b\uff0c\u7528\u6cd5\u5982\u4e0b<\/p>\n<pre><code class=\"language-python\">from functools import wraps\n\ndef timer(func):\n    @wraps(func)\n    def wrapper(*args,**kwargs):\n        start_time=time.time()\n        res=func(*args,**kwargs)\n        stop_time=time.time()\n        print(&#039;run time is %s&#039; %(stop_time-start_time))\n        return res\n    return wrapper<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe42.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u6076\u641e\u56fe42.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00 \u88c5\u9970\u5668\u4ecb\u7ecd 1.1 \u4e3a\u4f55\u8981\u7528\u88c5\u9970\u5668 \u8f6f\u4ef6\u7684\u8bbe\u8ba1\u5e94\u8be5\u9075\u5faa\u5f00\u653e\u5c01\u95ed\u539f\u5219\uff0c\u5373\u5bf9\u6269\u5c55\u662f\u5f00\u653e\u7684\uff0c\u800c\u5bf9\u4fee\u6539\u662f\u5c01\u95ed\u7684\u3002\u5bf9 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,281,326],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4135"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4135"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4135\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6693"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}