{"id":971542,"date":"2024-12-27T05:35:55","date_gmt":"2024-12-26T21:35:55","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/971542.html"},"modified":"2024-12-27T05:35:57","modified_gmt":"2024-12-26T21:35:57","slug":"python%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96mysql","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/971542.html","title":{"rendered":"python+\u5982\u4f55\u8bfb\u53d6mysql"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24194622\/39fdaf9a-9c97-4e2d-b54f-12f9f1d94de5.webp\" alt=\"python+\u5982\u4f55\u8bfb\u53d6mysql\" \/><\/p>\n<p><p> <strong>\u8981\u5728Python\u4e2d\u8bfb\u53d6MySQL\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528MySQL Connector\/Python\u3001PyMySQL\u3001SQLAlchemy\u7b49\u5e93\u3002\u8fd9\u4e9b\u5e93\u63d0\u4f9b\u4e86\u4e0eMySQL\u6570\u636e\u5e93\u4ea4\u4e92\u7684\u7b80\u4fbf\u65b9\u6cd5\uff0c\u652f\u6301\u8fde\u63a5\u6570\u636e\u5e93\u3001\u6267\u884cSQL\u67e5\u8be2\u3001\u5904\u7406\u7ed3\u679c\u96c6\u7b49\u529f\u80fd\u3002<\/strong>\u5728\u8fd9\u4e4b\u4e2d\uff0cMySQL Connector\/Python\u662f\u7531MySQL\u5b98\u65b9\u63d0\u4f9b\u7684\u5e93\uff0cPyMySQL\u662f\u4e00\u4e2a\u7eafPython\u5b9e\u73b0\u7684\u5e93\uff0cSQLAlchemy\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684ORM\uff08\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff09\u5e93\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u5e93\u8bfb\u53d6MySQL\u6570\u636e\u5e93\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001MYSQL CONNECTOR\/PYTHON<\/p>\n<\/p>\n<p><p>MySQL Connector\/Python\u662fMySQL\u5b98\u65b9\u63d0\u4f9b\u7684\u8fde\u63a5\u5668\uff0c\u529f\u80fd\u5f3a\u5927\u4e14\u6613\u4e8e\u4f7f\u7528\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b89\u88c5\u4e0e\u914d\u7f6e<\/li>\n<\/ol>\n<p><p>\u8981\u4f7f\u7528MySQL Connector\/Python\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u8be5\u5e93\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install mysql-connector-python<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u5c31\u53ef\u4ee5\u5728Python\u811a\u672c\u4e2d\u5bfc\u5165\u8be5\u5e93\u5e76\u914d\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import mysql.connector<\/p>\n<p>config = {<\/p>\n<p>    &#39;user&#39;: &#39;your_username&#39;,<\/p>\n<p>    &#39;password&#39;: &#39;your_password&#39;,<\/p>\n<p>    &#39;host&#39;: &#39;your_host&#39;,<\/p>\n<p>    &#39;database&#39;: &#39;your_database&#39;<\/p>\n<p>}<\/p>\n<p>connection = mysql.connector.connect(config)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u6267\u884cSQL\u67e5\u8be2<\/li>\n<\/ol>\n<p><p>\u914d\u7f6e\u597d\u8fde\u63a5\u540e\uff0c\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6e38\u6807\u5bf9\u8c61\uff0c\u5e76\u6267\u884cSQL\u67e5\u8be2\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">cursor = connection.cursor()<\/p>\n<p>query = &quot;SELECT * FROM your_table&quot;<\/p>\n<p>cursor.execute(query)<\/p>\n<p>for row in cursor.fetchall():<\/p>\n<p>    print(row)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u6e38\u6807\u5bf9\u8c61\u7528\u4e8e\u6267\u884cSQL\u8bed\u53e5\u5e76\u83b7\u53d6\u7ed3\u679c\u96c6\u3002\u901a\u8fc7\u8c03\u7528<code>fetchall()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u4ee5\u5217\u8868\u7684\u5f62\u5f0f\u8fd4\u56de\u3002<\/strong><\/p>\n<\/p>\n<ol start=\"3\">\n<li>\u5173\u95ed\u8fde\u63a5<\/li>\n<\/ol>\n<p><p>\u4f7f\u7528\u5b8c\u6570\u636e\u5e93\u540e\uff0c\u8bb0\u5f97\u5173\u95ed\u6e38\u6807\u548c\u8fde\u63a5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">cursor.close()<\/p>\n<p>connection.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u5173\u95ed\u8fde\u63a5\u662f\u4e2a\u826f\u597d\u7684\u5b9e\u8df5\uff0c\u53ef\u4ee5\u91ca\u653e\u6570\u636e\u5e93\u8d44\u6e90\uff0c\u907f\u514d\u8fde\u63a5\u6cc4\u9732\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e8c\u3001PYMYSQL<\/p>\n<\/p>\n<p><p>PyMySQL\u662f\u4e00\u4e2a\u7eafPython\u5b9e\u73b0\u7684MySQL\u5ba2\u6237\u7aef\u5e93\uff0c\u4f7f\u7528\u5b83\u65e0\u9700\u5b89\u88c5\u989d\u5916\u7684\u4e8c\u8fdb\u5236\u7ec4\u4ef6\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b89\u88c5\u4e0e\u914d\u7f6e<\/li>\n<\/ol>\n<p><p>\u9996\u5148\uff0c\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5PyMySQL\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pymysql<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u7136\u540e\uff0c\u5bfc\u5165PyMySQL\u5e76\u914d\u7f6e\u8fde\u63a5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pymysql<\/p>\n<p>connection = pymysql.connect(<\/p>\n<p>    host=&#39;your_host&#39;,<\/p>\n<p>    user=&#39;your_username&#39;,<\/p>\n<p>    password=&#39;your_password&#39;,<\/p>\n<p>    database=&#39;your_database&#39;<\/p>\n<p>)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u6267\u884c\u67e5\u8be2<\/li>\n<\/ol>\n<p><p>\u4f7f\u7528PyMySQL\u6267\u884c\u67e5\u8be2\u7684\u8fc7\u7a0b\u4e0eMySQL Connector\/Python\u7c7b\u4f3c\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">cursor = connection.cursor()<\/p>\n<p>query = &quot;SELECT * FROM your_table&quot;<\/p>\n<p>cursor.execute(query)<\/p>\n<p>for row in cursor.fetchall():<\/p>\n<p>    print(row)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>PyMySQL\u540c\u6837\u63d0\u4f9b\u4e86\u6e38\u6807\u5bf9\u8c61\uff0c\u53ef\u4ee5\u7528\u4e8e\u6267\u884cSQL\u8bed\u53e5\u548c\u83b7\u53d6\u7ed3\u679c\u96c6\u3002<\/strong><\/p>\n<\/p>\n<ol start=\"3\">\n<li>\u5173\u95ed\u8fde\u63a5<\/li>\n<\/ol>\n<p><p>\u5728\u5b8c\u6210\u6570\u636e\u5e93\u64cd\u4f5c\u540e\uff0c\u5173\u95ed\u6e38\u6807\u548c\u8fde\u63a5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">cursor.close()<\/p>\n<p>connection.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u5173\u95ed\u8fde\u63a5\u4e0d\u4ec5\u80fd\u91ca\u653e\u8d44\u6e90\uff0c\u8fd8\u80fd\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e09\u3001SQLALCHEMY<\/p>\n<\/p>\n<p><p>SQLAlchemy\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u5e93\u5de5\u5177\u5305\uff0c\u652f\u6301\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09\uff0c\u53ef\u4ee5\u8ba9\u5f00\u53d1\u8005\u5728\u6570\u636e\u5e93\u64cd\u4f5c\u4e2d\u4f7f\u7528Python\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b89\u88c5\u4e0e\u914d\u7f6e<\/li>\n<\/ol>\n<p><p>\u9996\u5148\u5b89\u88c5SQLAlchemy\u53ca\u5176MySQL\u9a71\u52a8\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install sqlalchemy pymysql<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u914d\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\u5b57\u7b26\u4e32\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from sqlalchemy import create_engine<\/p>\n<p>engine = create_engine(&#39;mysql+pymysql:\/\/your_username:your_password@your_host\/your_database&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528ORM\u6a21\u578b\u6267\u884c\u67e5\u8be2<\/li>\n<\/ol>\n<p><p>\u5b9a\u4e49\u4e00\u4e2aORM\u6a21\u578b\u7c7b\uff0c\u6620\u5c04\u5230\u6570\u636e\u5e93\u8868\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from sqlalchemy.ext.declarative import declarative_base<\/p>\n<p>from sqlalchemy import Column, Integer, String<\/p>\n<p>Base = declarative_base()<\/p>\n<p>class YourTable(Base):<\/p>\n<p>    __tablename__ = &#39;your_table&#39;<\/p>\n<p>    id = Column(Integer, primary_key=True)<\/p>\n<p>    name = Column(String)<\/p>\n<p>Base.metadata.create_all(engine)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>SQLAlchemy\u5141\u8bb8\u901a\u8fc7\u5b9a\u4e49Python\u7c7b\u6765\u6620\u5c04\u6570\u636e\u5e93\u8868\uff0c\u8fd9\u4f7f\u5f97\u64cd\u4f5c\u6570\u636e\u5e93\u66f4\u52a0\u76f4\u89c2\u548c\u7b80\u6d01\u3002<\/strong><\/p>\n<\/p>\n<ol start=\"3\">\n<li>\u67e5\u8be2\u6570\u636e<\/li>\n<\/ol>\n<p><p>\u4f7f\u7528SQLAlchemy\u7684\u4f1a\u8bdd\u5bf9\u8c61\u6267\u884c\u67e5\u8be2\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from sqlalchemy.orm import sessionmaker<\/p>\n<p>Session = sessionmaker(bind=engine)<\/p>\n<p>session = Session()<\/p>\n<p>results = session.query(YourTable).all()<\/p>\n<p>for row in results:<\/p>\n<p>    print(row.id, row.name)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u901a\u8fc7SQLAlchemy\u7684\u4f1a\u8bdd\u5bf9\u8c61\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4ee5\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u8fd9\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/strong><\/p>\n<\/p>\n<ol start=\"4\">\n<li>\u5173\u95ed\u4f1a\u8bdd<\/li>\n<\/ol>\n<p><p>\u5728\u5b8c\u6210\u64cd\u4f5c\u540e\uff0c\u5173\u95ed\u4f1a\u8bdd\u4ee5\u91ca\u653e\u8d44\u6e90\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">session.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u5173\u95ed\u4f1a\u8bdd\u662f\u4e00\u4e2a\u826f\u597d\u7684\u4e60\u60ef\uff0c\u6709\u52a9\u4e8e\u786e\u4fdd\u6570\u636e\u5e93\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u56db\u3001\u9009\u62e9\u9002\u5408\u7684\u5e93<\/p>\n<\/p>\n<p><p>\u9009\u62e9\u5408\u9002\u7684\u5e93\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u5177\u4f53\u9700\u6c42\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>MySQL Connector\/Python<\/strong>\u662f\u5b98\u65b9\u5e93\uff0c\u9002\u5408\u9700\u8981\u4e0eMySQL\u8fdb\u884c\u9ad8\u6548\u548c\u7a33\u5b9a\u4ea4\u4e92\u7684\u9879\u76ee\u3002<\/li>\n<li><strong>PyMySQL<\/strong>\u662f\u7eafPython\u5b9e\u73b0\uff0c\u9002\u5408\u9700\u8981\u8f7b\u91cf\u7ea7\u89e3\u51b3\u65b9\u6848\u7684\u9879\u76ee\u3002<\/li>\n<li><strong>SQLAlchemy<\/strong>\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684ORM\u529f\u80fd\uff0c\u9002\u5408\u9700\u8981\u590d\u6742\u6570\u636e\u5e93\u64cd\u4f5c\u548c\u5bf9\u8c61\u6620\u5c04\u7684\u9879\u76ee\u3002<\/li>\n<\/ul>\n<p><p>\u4e94\u3001\u6027\u80fd\u4f18\u5316<\/p>\n<\/p>\n<p><p>\u5728\u8bfb\u53d6MySQL\u6570\u636e\u65f6\uff0c\u6027\u80fd\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8003\u8651\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316\u5efa\u8bae\uff1a<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u8fde\u63a5\u6c60<\/strong>\uff1a\u907f\u514d\u9891\u7e41\u521b\u5efa\u548c\u5173\u95ed\u8fde\u63a5\uff0c\u53ef\u4ee5\u901a\u8fc7\u8fde\u63a5\u6c60\u6765\u7ba1\u7406\u6570\u636e\u5e93\u8fde\u63a5\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u7d22\u5f15\u4f18\u5316<\/strong>\uff1a\u786e\u4fdd\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u4e86\u5408\u9002\u7684\u7d22\u5f15\uff0c\u4ee5\u52a0\u5feb\u6570\u636e\u68c0\u7d22\u901f\u5ea6\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5206\u9875\u67e5\u8be2<\/strong>\uff1a\u5bf9\u4e8e\u5927\u6570\u636e\u96c6\uff0c\u4f7f\u7528\u5206\u9875\u67e5\u8be2\u6765\u51cf\u5c11\u4e00\u6b21\u6027\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6279\u91cf\u64cd\u4f5c<\/strong>\uff1a\u5bf9\u4e8e\u6279\u91cf\u63d2\u5165\u6216\u66f4\u65b0\u64cd\u4f5c\uff0c\u5c3d\u91cf\u4f7f\u7528\u6279\u91cf\u5904\u7406\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u7f13\u5b58\u7ed3\u679c<\/strong>\uff1a\u5bf9\u4e8e\u9891\u7e41\u8bbf\u95ee\u7684\u9759\u6001\u6570\u636e\uff0c\u53ef\u4ee5\u8003\u8651\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u516d\u3001\u9519\u8bef\u5904\u7406<\/p>\n<\/p>\n<p><p>\u5728\u64cd\u4f5c\u6570\u636e\u5e93\u65f6\uff0c\u9519\u8bef\u5904\u7406\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002\u5efa\u8bae\u5728\u6570\u636e\u5e93\u64cd\u4f5c\u4e2d\u52a0\u5165\u5f02\u5e38\u6355\u83b7\u673a\u5236\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    # \u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c<\/p>\n<p>except mysql.connector.Error as err:<\/p>\n<p>    print(f&quot;Error: {err}&quot;)<\/p>\n<p>finally:<\/p>\n<p>    cursor.close()<\/p>\n<p>    connection.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u901a\u8fc7\u6355\u83b7\u5f02\u5e38\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u5e94\u5bf9\u6570\u636e\u5e93\u64cd\u4f5c\u4e2d\u7684\u5404\u79cd\u9519\u8bef\u60c5\u51b5\uff0c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u7efc\u4e0a\u6240\u8ff0\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u5e93\u6765\u8bfb\u53d6MySQL\u6570\u636e\u5e93\uff0c\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u5e93\u548c\u4f18\u5316\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u6548\u7387\u548c\u7a33\u5b9a\u6027\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684\u67e5\u8be2\u8fd8\u662f\u590d\u6742\u7684ORM\u64cd\u4f5c\uff0cPython\u90fd\u80fd\u63d0\u4f9b\u5f3a\u5927\u7684\u652f\u6301\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8fde\u63a5MySQL\u6570\u636e\u5e93\uff1f<\/strong><br \/>\u5728Python\u4e2d\u8fde\u63a5MySQL\u6570\u636e\u5e93\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\uff0c\u5982<code>mysql-connector-python<\/code>\u6216<code>PyMySQL<\/code>\u3002\u9996\u5148\uff0c\u786e\u4fdd\u5df2\u7ecf\u5b89\u88c5\u4e86\u8fd9\u4e9b\u5e93\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528<code>pip install mysql-connector-python<\/code>\u6216<code>pip install PyMySQL<\/code>\u6765\u5b89\u88c5\u3002\u8fde\u63a5\u6570\u636e\u5e93\u7684\u57fa\u672c\u6b65\u9aa4\u5305\u62ec\u5bfc\u5165\u5e93\u3001\u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\u3001\u521b\u5efa\u6e38\u6807\u5bf9\u8c61\u4ee5\u53ca\u6267\u884cSQL\u67e5\u8be2\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff1a  <\/p>\n<pre><code class=\"language-python\">import mysql.connector\n\nconn = mysql.connector.connect(\n    host=&#39;localhost&#39;,\n    user=&#39;your_username&#39;,\n    password=&#39;your_password&#39;,\n    database=&#39;your_database&#39;\n)\n\ncursor = conn.cursor()\ncursor.execute(&quot;SELECT * FROM your_table&quot;)\nfor row in cursor.fetchall():\n    print(row)\n\ncursor.close()\nconn.close()\n<\/code><\/pre>\n<p><strong>\u4f7f\u7528Python\u8bfb\u53d6MySQL\u4e2d\u7684\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5904\u7406\u67e5\u8be2\u7ed3\u679c\uff1f<\/strong><br \/>\u8bfb\u53d6MySQL\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u540e\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u6e38\u6807\u5bf9\u8c61\u7684<code>fetchall()<\/code>\u6216<code>fetchone()<\/code>\u65b9\u6cd5\u6765\u83b7\u53d6\u7ed3\u679c\u3002<code>fetchall()<\/code>\u8fd4\u56de\u6240\u6709\u7ed3\u679c\uff0c<code>fetchone()<\/code>\u8fd4\u56de\u5355\u6761\u8bb0\u5f55\u3002\u7ed3\u679c\u53ef\u4ee5\u5b58\u50a8\u5728\u5217\u8868\u6216\u5b57\u5178\u4e2d\uff0c\u65b9\u4fbf\u540e\u7eed\u5904\u7406\u3002\u4e3a\u4e86\u4f7f\u6570\u636e\u66f4\u6613\u4e8e\u7406\u89e3\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528Pandas\u5e93\u5c06\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aDataFrame\u683c\u5f0f\uff0c\u8fd9\u6837\u4fbf\u4e8e\u8fdb\u884c\u6570\u636e\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u5904\u7406MySQL\u67e5\u8be2\u4e2d\u7684\u9519\u8bef\uff1f<\/strong><br \/>\u5728\u6267\u884cMySQL\u67e5\u8be2\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u9519\u8bef\uff0c\u4f8b\u5982\u8fde\u63a5\u5931\u8d25\u6216SQL\u8bed\u6cd5\u9519\u8bef\u3002\u4e3a\u907f\u514d\u7a0b\u5e8f\u5d29\u6e83\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>try-except<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u3002\u5728<code>except<\/code>\u5757\u4e2d\uff0c\u60a8\u53ef\u4ee5\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\u6216\u6267\u884c\u5176\u4ed6\u903b\u8f91\u4ee5\u5904\u7406\u9519\u8bef\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a  <\/p>\n<pre><code class=\"language-python\">try:\n    cursor.execute(&quot;SELECT * FROM your_table&quot;)\nexcept mysql.connector.Error as err:\n    print(f&quot;Error: {err}&quot;)\nfinally:\n    cursor.close()\n    conn.close()\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u786e\u4fdd\u5728\u51fa\u73b0\u9519\u8bef\u65f6\uff0c\u7a0b\u5e8f\u80fd\u591f\u4f18\u96c5\u5730\u5904\u7406\u5e76\u5173\u95ed\u8fde\u63a5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5728Python\u4e2d\u8bfb\u53d6MySQL\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528MySQL Connector\/Python\u3001PyMySQL\u3001 [&hellip;]","protected":false},"author":3,"featured_media":971550,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971542"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=971542"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971542\/revisions"}],"predecessor-version":[{"id":971552,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971542\/revisions\/971552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/971550"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=971542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=971542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=971542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}