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這篇文章主要介紹了python include標簽如何使用的相關知識，內容詳細易懂，操作簡單快捷，具有一定借鑒價值，相信大家閱讀完這篇python include標簽如何使用文章都會有所收獲，下面我們一起來看看吧。
在講python include標簽使用之前，我們新建一個include_demo項目
項目新建好了，再在templates文件下新建一個index.html文件，代碼如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{margin:0;padding:0;}
ul{list-style: none;}
a{text-decoration: none;
color: #ffffff;}
nav,footer,.main{width:1000px; height:40px; margin:0 auto;}
ul{width: 1000px; height:40px; line-height: 40px;
background-color:#000000;}
li{width:120px; height:40px; line-height:40px; text-align: center;
float:left;}
.main{clear:both; line-height:40px; background-color:pink;}
footer{height:40px; background-color: green;}
</style>
</head>
<body>
<nav>
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首頁</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >關于我們</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >產品中心</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >新聞中心</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >服務宗旨</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >聯系我們</a></li>
</ul>
</nav>
<div class="main">
網站首頁主體部分
</div>
<footer>
網站首頁footer部分
</footer>
</body>
</html>然后在include_demo.py頁面渲染一下index模板文件，代碼如下：
from flask import Flask,render_template
app = Flask(__name__)
@app.route('/')
def hello_world():
return render_template("index.html")
if __name__ == '__main__':
app.run(debug=True)運行include_demo.py文件，運行結果如下：
在這里主要是為了方便講解include標簽，所有沒太注重前端頁面部分。
通過上面index.html文件就能發現，我將公共和私有代碼部分都在一塊，假設網站有幾十個頁面，我將所有公共代碼和私有代碼
都放一塊，如果有一天要修改某個公共代碼塊，哪就得修改幾十個頁面，那將是件非常麻煩的事。為了方便管理項目，我們將頁面公共、私有代碼部分抽取出來。
我們新建一個header.html文件，把css樣式及nav標簽內容復制到header.html頁面中。
代碼如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{margin:0;padding:0;}
ul{list-style: none;}
a{text-decoration: none;
color: #ffffff;}
nav,footer,.main{width:1000px; height:40px; margin:0 auto;}
ul{width: 1000px; height:40px; line-height: 40px;
background-color:#000000;}
li{width:120px; height:40px; line-height:40px; text-align: center;
float:left;}
.main{clear:both; line-height:40px; background-color:pink;}
footer{height:40px; background-color: green;}
</style>
</head>
<body>
<nav>
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首頁</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >關于我們</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >產品中心</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >新聞中心</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >服務宗旨</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >聯系我們</a></li>
</ul>
</nav>
</body>
</html>然后新建一個footer.html文件，把footer標簽中的內容復制到該文件中。
代碼如下：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <footer> 網站首頁footer部分 </footer> </footer> </body> </html>
我們在運行主app文件，結果如下：
(＾－＾)，為啥沒有居中，背景色也不見了？？因為我們沒有把樣式引入進來（嗯，頁面太丑了，沒法看了，趕緊關了！！）
OK！我們將公共代碼抽取出來后。記得在index.html文件中用include標簽導入header、footer代碼塊，代碼如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
{% include "header.html" %}
<div class="main">
網站首頁主體部分
</div>
{% include "footer.html" %}
</body>
</html>再運行主app文件，結果如下：
關于“python include標簽如何使用”這篇文章的內容就介紹到這里，感謝各位的閱讀！相信大家對“python include標簽如何使用”知識都有一定的了解，大家如果還想學習更多知識，歡迎關注億速云行業資訊頻道。
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