{"id":4262,"date":"2022-03-19T22:32:32","date_gmt":"2022-03-19T14:32:32","guid":{"rendered":"https:\/\/egonlin.com\/?p=4262"},"modified":"2022-04-11T19:03:11","modified_gmt":"2022-04-11T11:03:11","slug":"%e7%ac%ac%e4%ba%94%e7%af%87%ef%bc%9a%e7%bb%91%e5%ae%9a%e6%96%b9%e6%b3%95%e4%b8%8e%e9%9d%9e%e7%bb%91%e5%ae%9a%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=4262","title":{"rendered":"\u7b2c\u4e94\u7bc7\uff1a\u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd5"},"content":{"rendered":"<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd51.jpg'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/03\/\u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd51.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h1>\u4e00 \u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd5<\/h1>\n<p>\u200b    \u7c7b\u4e2d\u5b9a\u4e49\u7684\u51fd\u6570\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a\u7ed1\u5b9a\u65b9\u6cd5\u548c\u975e\u7ed1\u5b9a\u65b9\u6cd5<\/p>\n<p>\u200b    \u5176\u4e2d\u7ed1\u5b9a\u65b9\u6cd5\u53c8\u5206\u4e3a\u7ed1\u5b9a\u5230\u5bf9\u8c61\u7684\u5bf9\u8c61\u65b9\u6cd5\u548c\u7ed1\u5b9a\u5230\u7c7b\u7684\u7c7b\u65b9\u6cd5\u3002<\/p>\n<p>\u200b    \u5728\u7c7b\u4e2d\u6b63\u5e38\u5b9a\u4e49\u7684\u51fd\u6570\u9ed8\u8ba4\u662f\u7ed1\u5b9a\u5230\u5bf9\u8c61\u7684\uff0c\u800c\u4e3a\u67d0\u4e2a\u51fd\u6570\u52a0\u4e0a\u88c5\u9970\u5668@classmethod\u540e\uff0c\u8be5\u51fd\u6570\u5c31\u7ed1\u5b9a\u5230\u4e86\u7c7b\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\u56fe40-1.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\u56fe40-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>\u200b    \u6211\u4eec\u5728\u4e4b\u524d\u7684\u7ae0\u8282\u4e2d\u5df2\u7ecf\u4ecb\u7ecd\u8fc7\u5bf9\u8c61\u65b9\u6cd5\u4e86\uff0c\u672c\u8282\u6211\u4eec\u4e3b\u8981\u4ecb\u7ecd\u7c7b\u65b9\u6cd5\u3002\u7c7b\u65b9\u6cd5\u901a\u5e38\u7528\u6765\u5728__init__\u7684\u57fa\u7840\u4e0a\u63d0\u4f9b\u989d\u5916\u7684\u521d\u59cb\u5316\u5b9e\u4f8b\u7684\u65b9\u5f0f<\/p>\n<pre><code class=\"language-python\"># \u914d\u7f6e\u6587\u4ef6settings.py\u7684\u5185\u5bb9\nHOST=&#039;127.0.0.1&#039;\nPORT=3306\n\n# \u7c7b\u65b9\u6cd5\u7684\u5e94\u7528\nimport settings\nclass MySQL:\n    def __init__(self,host,port):\n        self.host=host\n        self.port=port\n    @classmethod\n    def from_conf(cls): # \u4ece\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bfb\u53d6\u914d\u7f6e\u8fdb\u884c\u521d\u59cb\u5316\n        return cls(settings.HOST,settings.PORT)\n\n>&gt;&gt; MySQL.from_conf # \u7ed1\u5b9a\u5230\u7c7b\u7684\u65b9\u6cd5\n&lt;bound method MySQL.from_conf of &lt;class \u2018__main__.MySQL&#039;&gt;&gt;\n>&gt;&gt; conn=MySQL.from_conf() # \u8c03\u7528\u7c7b\u65b9\u6cd5\uff0c\u81ea\u52a8\u5c06\u7c7bMySQL\u5f53\u4f5c\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f20\u7ed9cls<\/code><\/pre>\n<p>\u7ed1\u5b9a\u5230\u7c7b\u7684\u65b9\u6cd5\u5c31\u662f\u4e13\u95e8\u7ed9\u7c7b\u7528\u7684\uff0c\u4f46\u5176\u5b9e\u5bf9\u8c61\u4e5f\u53ef\u4ee5\u8c03\u7528\uff0c\u53ea\u4e0d\u8fc7\u81ea\u52a8\u4f20\u5165\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u4ecd\u7136\u662f\u7c7b\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u79cd\u8c03\u7528\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u5e76\u4e14\u5bb9\u6613\u5f15\u8d77\u6df7\u6dc6\uff0c\u8fd9\u4e5f\u662fPython\u7684\u5bf9\u8c61\u7cfb\u7edf\u4e0e\u5176\u4ed6\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\u5bf9\u8c61\u7cfb\u7edf\u7684\u533a\u522b\u4e4b\u4e00\uff0c\u6bd4\u5982Smalltalk\u548cRuby\u4e2d\uff0c\u7ed1\u5b9a\u5230\u7c7b\u7684\u65b9\u6cd5\u4e0e\u7ed1\u5b9a\u5230\u5bf9\u8c61\u7684\u65b9\u6cd5\u662f\u4e25\u683c\u533a\u5206\u5f00\u7684\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\u56fe41-1.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\u56fe41-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h1>\u4e8c \u975e\u7ed1\u5b9a\u65b9\u6cd5<\/h1>\n<p>\u4e3a\u7c7b\u4e2d\u67d0\u4e2a\u51fd\u6570\u52a0\u4e0a\u88c5\u9970\u5668@staticmethod\u540e\uff0c\u8be5\u51fd\u6570\u5c31\u53d8\u6210\u4e86\u975e\u7ed1\u5b9a\u65b9\u6cd5\uff0c\u4e5f\u79f0\u4e3a\u9759\u6001\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u4e0d\u4e0e\u7c7b\u6216\u5bf9\u8c61\u7ed1\u5b9a\uff0c\u7c7b\u4e0e\u5bf9\u8c61\u90fd\u53ef\u4ee5\u6765\u8c03\u7528\u5b83\uff0c\u4f46\u5b83\u5c31\u662f\u4e00\u4e2a\u666e\u901a\u51fd\u6570\u800c\u5df2\uff0c\u56e0\u800c\u6ca1\u6709\u81ea\u52a8\u4f20\u503c\u90a3\u4e48\u4e00\u8bf4<\/p>\n<pre><code class=\"language-python\">import uuid\nclass MySQL:\n    def __init__(self,host,port):\n        self.id=self.create_id()\n        self.host=host\n        self.port=port\n    @staticmethod\n    def create_id():\n        return uuid.uuid1()\n\n>&gt;&gt; conn=MySQL(\u2018127.0.0.1&#039;,3306)\n>&gt;&gt; print(conn.id) #100365f6-8ae0-11e7-a51e-0088653ea1ec\n\n# \u7c7b\u6216\u5bf9\u8c61\u6765\u8c03\u7528create_id\u53d1\u73b0\u90fd\u662f\u666e\u901a\u51fd\u6570\uff0c\u800c\u975e\u7ed1\u5b9a\u5230\u8c01\u7684\u65b9\u6cd5\n>&gt;&gt; MySQL.create_id\n&lt;function MySQL.create_id at 0x1025c16a8&gt;\n>&gt;&gt; conn.create_id\n&lt;function MySQL.create_id at 0x1025c16a8&gt;<\/code><\/pre>\n<p>\u603b\u7ed3\u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd5\u7684\u4f7f\u7528\uff1a\u82e5\u7c7b\u4e2d\u9700\u8981\u4e00\u4e2a\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u7684\u5b9e\u73b0\u4ee3\u7801\u4e2d\u9700\u8981\u5f15\u7528\u5bf9\u8c61\u5219\u5c06\u5176\u5b9a\u4e49\u6210\u5bf9\u8c61\u65b9\u6cd5\u3001\u9700\u8981\u5f15\u7528\u7c7b\u5219\u5c06\u5176\u5b9a\u4e49\u6210\u7c7b\u65b9\u6cd5\u3001\u65e0\u9700\u5f15\u7528\u7c7b\u6216\u5bf9\u8c61\u5219\u5c06\u5176\u5b9a\u4e49\u6210\u9759\u6001\u65b9\u6cd5\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\u56fe42-1.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\u56fe42-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00 \u7ed1\u5b9a\u65b9\u6cd5\u4e0e\u975e\u7ed1\u5b9a\u65b9\u6cd5 \u200b \u7c7b\u4e2d\u5b9a\u4e49\u7684\u51fd\u6570\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a\u7ed1\u5b9a\u65b9\u6cd5\u548c\u975e\u7ed1\u5b9a\u65b9\u6cd5 \u200b \u5176\u4e2d\u7ed1\u5b9a\u65b9\u6cd5\u53c8\u5206\u4e3a\u7ed1\u5b9a\u5230\u5bf9\u8c61 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6717,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,281,328],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4262"}],"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=4262"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4262\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6717"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}