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                > extends為繼承指令,一般項目中, 我們的網頁框架是一樣的, 比如新聞介紹頁, 文章介紹頁, 文章列表頁, 等等 都是公用的頭部底部和側邊欄, 又或者做后臺的時候, 都是統一的導航菜單和底部, 這時候我們可以使用模板繼承方便的實現代碼的重用和結構的劃分 ## 1. base.html ``` <!DOCTYPE html> <html> <head> <title>base</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <div php-block="left">這里是left, 會被替換</div> <div php-block="right">這里是right, 會被替換</div> <div php-block="bottom">這里是bottom, 會被替換</div> </body> </html> ``` ## 2. index.html ``` <div php-extends="common/base"></div> <div php-block="left"> 網頁主體 </div> <div php-block="right"> 側邊欄推薦 <ul> <li php-repeat="[1,2,3,4,5] as $i">列表 {$i}</li> </ul> </div> <div php-block="bottom"> 版權所有 {$username} </div> ``` > 這樣模板引擎調用解析 index.html的時候會把對應的block合并到base.html中, 實現模板的繼承 ## 解析結果 ``` <!DOCTYPE html> <html> <head> <title>base</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <div > 網頁主體 </div> <div > 側邊欄推薦 <ul> <?php foreach ([1,2,3,4,5] as $i) { ?><li >列表 <?php echo $i; ?></li><?php } ?> </ul> </div> <div > 版權所有 <?php echo $username; ?> </div> </body> </html> ```
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