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                ## 官方手冊 > <span style="color:skyblue;">ThinkPHP內置了抽象數據庫訪問層,把不同的數據庫操作封裝起來,我們只需要使用公共的Db類進行操 作,而無需針對不同的數據庫寫不同的代碼和底層實現,Db類會自動調用相應的數據庫驅動來處理。采用 PDO方式,目前包含了Mysql、SqlServer、PgSQL、Sqlite等數據庫的支持。</span> #### 數據庫類方法靜態化,對各種主流數據庫提供統一接口 * * * * * ## 結過總結,共有三種連接方式 >[success] 1. 應用中的數據庫配置文件: database.php > 2. Db類中的靜態方法: connect() > 3. 模塊中的配置文件: config.php ### 本節對這三種數據庫連接進行重點實例講解
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