{"id":547,"date":"2024-12-26T22:44:12","date_gmt":"2024-12-26T14:44:12","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=547"},"modified":"2024-12-26T22:44:12","modified_gmt":"2024-12-26T14:44:12","slug":"%e4%bf%9d%e6%8c%81-python-%e6%9e%b6%e6%9e%84%e5%b9%b2%e5%87%80%e7%9a%84%e5%8d%81%e5%a4%a7%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2024\/12\/26\/%e4%bf%9d%e6%8c%81-python-%e6%9e%b6%e6%9e%84%e5%b9%b2%e5%87%80%e7%9a%84%e5%8d%81%e5%a4%a7%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5\/","title":{"rendered":"\u4fdd\u6301 Python \u67b6\u6784\u5e72\u51c0\u7684\u5341\u5927\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728 Python \u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u968f\u7740\u4ee3\u7801\u7684\u6269\u5c55\uff0c\u4fdd\u6301\u4ee3\u7801\u67b6\u6784\u5e72\u51c0\uff08Clean Architecture\uff09\u81f3\u5173\u91cd\u8981\u3002\u8fd9\u79cd\u505a\u6cd5\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd8\u80fd\u51cf\u5c11\u6f5c\u5728\u7684\u6280\u672f\u503a\u52a1\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u76ee\u5f55\u7ed3\u6784\u8bbe\u8ba1<\/strong><\/h3>\n\n\n\n<p>\u826f\u597d\u7684\u76ee\u5f55\u7ed3\u6784\u6709\u52a9\u4e8e\u4ee3\u7801\u6e05\u6670\u4e14\u6613\u4e8e\u5bfc\u822a\u3002\u5e38\u89c1\u7684 Python \u9879\u76ee\u76ee\u5f55\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>project\/\n\u251c\u2500\u2500 app\/\n\u2502   \u251c\u2500\u2500 __init__.py\n\u2502   \u251c\u2500\u2500 models.py\n\u2502   \u251c\u2500\u2500 views.py\n\u2502   \u251c\u2500\u2500 controllers\/\n\u2502   \u2502   \u251c\u2500\u2500 __init__.py\n\u2502   \u2502   \u2514\u2500\u2500 user_controller.py\n\u2502   \u251c\u2500\u2500 services\/\n\u2502   \u2502   \u251c\u2500\u2500 __init__.py\n\u2502   \u2502   \u2514\u2500\u2500 auth_service.py\n\u2502   \u2514\u2500\u2500 utils\/\n\u2502       \u251c\u2500\u2500 __init__.py\n\u2502       \u2514\u2500\u2500 helpers.py\n\u251c\u2500\u2500 tests\/\n\u2502   \u251c\u2500\u2500 __init__.py\n\u2502   \u251c\u2500\u2500 test_models.py\n\u2502   \u2514\u2500\u2500 test_views.py\n\u251c\u2500\u2500 requirements.txt\n\u251c\u2500\u2500 .gitignore\n\u2514\u2500\u2500 main.py<\/code><\/pre>\n\n\n\n<p><strong>\u63a8\u8350\u505a\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c06\u4ee3\u7801\u5206\u4e3a\u72ec\u7acb\u7684\u903b\u8f91\u6a21\u5757\uff08\u5982 <code>models<\/code>\u3001<code>services<\/code>\u3001<code>utils<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u907f\u514d\u5c06\u6240\u6709\u529f\u80fd\u90fd\u5806\u79ef\u5728\u5355\u4e2a\u6587\u4ef6\u4e2d\u3002<\/li>\n\n\n\n<li>\u5c06\u6d4b\u8bd5\u4ee3\u7801\u72ec\u7acb\u653e\u7f6e\u5728 <code>tests\/<\/code> \u76ee\u5f55\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u9075\u5faa SOLID \u539f\u5219<\/strong><\/h3>\n\n\n\n<p>SOLID \u662f\u4fdd\u6301\u4ee3\u7801\u67b6\u6784\u5e72\u51c0\u7684\u91cd\u8981\u539f\u5219\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5355\u4e00\u804c\u8d23\u539f\u5219 (Single Responsibility Principle)<\/strong><br>\u6bcf\u4e2a\u6a21\u5757\u6216\u7c7b\u5e94\u8be5\u53ea\u6709\u4e00\u4e2a\u660e\u786e\u7684\u804c\u8d23\u3002<br><strong>\u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   # \u4e0d\u63a8\u8350\uff1a\u804c\u8d23\u6df7\u4e71\n   class UserManager:\n       def create_user(self, username, password):\n           # \u521b\u5efa\u7528\u6237\n           pass\n       def log_user_activity(self, user):\n           # \u8bb0\u5f55\u7528\u6237\u65e5\u5fd7\n           pass\n\n   # \u63a8\u8350\uff1a\u62c6\u5206\u804c\u8d23\n   class UserService:\n       def create_user(self, username, password):\n           pass\n   class UserLogger:\n       def log_user_activity(self, user):\n           pass<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5f00\u95ed\u539f\u5219 (Open\/Closed Principle)<\/strong><br>\u8f6f\u4ef6\u5b9e\u4f53\u5e94\u5bf9\u6269\u5c55\u5f00\u653e\uff0c\u5bf9\u4fee\u6539\u5173\u95ed\u3002\u4f7f\u7528\u63a5\u53e3\u6216\u62bd\u8c61\u7c7b\u5b9e\u73b0\u529f\u80fd\u6269\u5c55\u3002<\/li>\n\n\n\n<li><strong>\u91cc\u6c0f\u66ff\u6362\u539f\u5219 (Liskov Substitution Principle)<\/strong><br>\u5b50\u7c7b\u5e94\u80fd\u591f\u66ff\u4ee3\u7236\u7c7b\u4f7f\u7528\uff0c\u800c\u4e0d\u6539\u53d8\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u3002<\/li>\n\n\n\n<li><strong>\u63a5\u53e3\u9694\u79bb\u539f\u5219 (Interface Segregation Principle)<\/strong><br>\u907f\u514d\u81c3\u80bf\u7684\u63a5\u53e3\uff0c\u5c06\u63a5\u53e3\u7ec6\u5316\u4ee5\u6ee1\u8db3\u7279\u5b9a\u9700\u6c42\u3002<\/li>\n\n\n\n<li><strong>\u4f9d\u8d56\u53cd\u8f6c\u539f\u5219 (Dependency Inversion Principle)<\/strong><br>\u9ad8\u5c42\u6a21\u5757\u4e0d\u5e94\u8be5\u4f9d\u8d56\u4f4e\u5c42\u6a21\u5757\uff0c\u4e8c\u8005\u5e94\u8be5\u4f9d\u8d56\u4e8e\u62bd\u8c61\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u907f\u514d\u786c\u7f16\u7801<\/strong><\/h3>\n\n\n\n<p>\u5c06\u914d\u7f6e\u53c2\u6570\u3001\u5e38\u91cf\u7b49\u4ece\u4ee3\u7801\u4e2d\u63d0\u53d6\uff0c\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u6216\u73af\u5883\u53d8\u91cf\u8fdb\u884c\u7ba1\u7406\u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># config.py\nDATABASE_URL = \"postgres:\/\/username:password@localhost\/dbname\"\n\n# main.py\nfrom config import DATABASE_URL\nprint(f\"Connecting to database at {DATABASE_URL}\")<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u4f7f\u7528\u7c7b\u578b\u63d0\u793a<\/strong><\/h3>\n\n\n\n<p>\u7c7b\u578b\u63d0\u793a\uff08Type Hints\uff09\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u5e76\u5e2e\u52a9\u9759\u6001\u5206\u6790\u5de5\u5177\u53d1\u73b0\u6f5c\u5728\u95ee\u9898\u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def add(a: int, b: int) -&gt; int:\n    return a + b<\/code><\/pre>\n\n\n\n<p>\u7ed3\u5408\u5de5\u5177\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>mypy<\/strong>\uff1a\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u3002<\/li>\n\n\n\n<li><strong>pyright<\/strong>\uff1a\u5feb\u901f\u7c7b\u578b\u5206\u6790\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. \u7f16\u5199\u6d4b\u8bd5<\/strong><\/h3>\n\n\n\n<p>\u6d4b\u8bd5\u662f\u4fdd\u6301\u4ee3\u7801\u8d28\u91cf\u7684\u91cd\u8981\u90e8\u5206\u3002\u5e38\u89c1\u7684\u6d4b\u8bd5\u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5355\u5143\u6d4b\u8bd5\uff08Unit Test\uff09<\/li>\n\n\n\n<li>\u96c6\u6210\u6d4b\u8bd5\uff08Integration Test\uff09<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff08\u4f7f\u7528 <code>unittest<\/code>\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import unittest\nfrom app.utils.helpers import add\n\nclass TestHelpers(unittest.TestCase):\n    def test_add(self):\n        self.assertEqual(add(2, 3), 5)<\/code><\/pre>\n\n\n\n<p>\u6d4b\u8bd5\u6846\u67b6\u63a8\u8350\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>pytest<\/strong>\uff1a\u7b80\u6d01\u5f3a\u5927\u7684\u6d4b\u8bd5\u6846\u67b6\u3002<\/li>\n\n\n\n<li><strong>unittest<\/strong>\uff1aPython \u5185\u7f6e\u6d4b\u8bd5\u5e93\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6. \u907f\u514d\u5faa\u73af\u4f9d\u8d56<\/strong><\/h3>\n\n\n\n<p>\u5faa\u73af\u4f9d\u8d56\u4f1a\u5bfc\u81f4\u6a21\u5757\u5bfc\u5165\u95ee\u9898\uff0c\u5e94\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u907f\u514d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u53d6\u516c\u5171\u6a21\u5757\u3002<\/li>\n\n\n\n<li>\u5ef6\u8fdf\u5bfc\u5165\uff08\u5728\u51fd\u6570\u5185\u90e8\u5bfc\u5165\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5ef6\u8fdf\u5bfc\u5165\ndef some_function():\n    from app.models import User\n    user = User()<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>7. \u6587\u6863\u548c\u6ce8\u91ca<\/strong><\/h3>\n\n\n\n<p>\u826f\u597d\u7684\u6587\u6863\u548c\u6ce8\u91ca\u662f\u5e72\u51c0\u4ee3\u7801\u7684\u4e00\u90e8\u5206\u3002\u63a8\u8350\u4f7f\u7528 <code>docstring<\/code> \u7f16\u5199\u6587\u6863\u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def add(a: int, b: int) -&gt; int:\n    \"\"\"\n    Add two numbers.\n\n    :param a: The first number\n    :param b: The second number\n    :return: The sum of a and b\n    \"\"\"\n    return a + b<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>8. \u81ea\u52a8\u5316\u5de5\u5177<\/strong><\/h3>\n\n\n\n<p>\u4f7f\u7528\u5de5\u5177\u6765\u4fdd\u6301\u4ee3\u7801\u7684\u4e00\u81f4\u6027\u548c\u8d28\u91cf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4ee3\u7801\u683c\u5f0f\u5316<\/strong>\uff1a\u4f7f\u7528 <code>black<\/code> \u6216 <code>autopep8<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u4ee3\u7801\u68c0\u67e5<\/strong>\uff1a\u4f7f\u7528 <code>flake8<\/code> \u6216 <code>pylint<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u4f9d\u8d56\u7ba1\u7406<\/strong>\uff1a\u4f7f\u7528 <code>pip-tools<\/code> \u6216 <code>poetry<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>9. \u907f\u514d\u5168\u5c40\u53d8\u91cf\u548c\u51fd\u6570<\/strong><\/h3>\n\n\n\n<p>\u5168\u5c40\u53d8\u91cf\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u7684\u4e0d\u53ef\u9884\u6d4b\u6027\uff0c\u5efa\u8bae\u4f7f\u7528\u7c7b\u6216\u6a21\u5757\u5c01\u88c5\u529f\u80fd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>10. \u4f7f\u7528\u8bbe\u8ba1\u6a21\u5f0f<\/strong><\/h3>\n\n\n\n<p>\u9002\u5f53\u4f7f\u7528\u8bbe\u8ba1\u6a21\u5f0f\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u95ee\u9898\u7684\u89e3\u51b3\u3002\u5e38\u7528\u7684\u8bbe\u8ba1\u6a21\u5f0f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5355\u4f8b\u6a21\u5f0f<\/li>\n\n\n\n<li>\u5de5\u5382\u6a21\u5f0f<\/li>\n\n\n\n<li>\u89c2\u5bdf\u8005\u6a21\u5f0f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p>\u4fdd\u6301 Python \u67b6\u6784\u5e72\u51c0\u9700\u8981\u4ece\u9879\u76ee\u7ed3\u6784\u8bbe\u8ba1\u3001\u4ee3\u7801\u7ec4\u7ec7\u3001\u6d4b\u8bd5\u8986\u76d6\u5230\u81ea\u52a8\u5316\u5de5\u5177\u7684\u591a\u65b9\u914d\u5408\u3002\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u6613\u8bfb\u3001\u66f4\u9ad8\u6548\u3001\u66f4\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Python \u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u968f\u7740\u4ee3\u7801\u7684\u6269\u5c55\uff0c\u4fdd\u6301\u4ee3\u7801\u67b6\u6784\u5e72\u51c0\uff08Clean Architecture\uff09\u81f3\u5173\u91cd\u8981 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-547","post","type-post","status-publish","format-standard","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=547"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/547\/revisions"}],"predecessor-version":[{"id":548,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/547\/revisions\/548"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}