flask-for循环语句详解_flask for循环-优快云博客

from flask import Flask,render_template

app = Flask(__name__)
app.config.update(TEMPLATES_AUTO_RELOAD=True,Debug=True)


@app.route('/')
def hello_world():
    context={
        'books':[
            {
                'name':'三国演义',
                'author':'罗贯中',
                'price':110
             },{
                'name':'西游记',
                'author':'吴承恩',
                'price':109
            },{
                'name':'红楼梦',
                'author':'曹雪芹',
                'price':120
            },{
                'name':'水浒传',
                'author':'施耐庵',
                'price':119
            }
        ]

    }
    return render_template('index.html',**context)



if __name__ == '__main__':
    app.run(debug=True,port=8000)

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>zihliaokecheng</title>
</head>
<body>
<table>
 <thead>
<tr>
    <th>序号</th>
    <th>书名</th>
    <th>作者</th>
    <th>价格</th>
</tr>
</thead>

<tbody>
{% for book in books %}
    {% if loop.first %}
        <tr style="background:red ">
    {% elif loop.last %}
        <tr style="background: red">
    {% else %}
        <tr>
    {% endif %}
        <td>{{ loop.index0 }}</td>
        <td>{{ book.name }}</td>
        <td>{{ book.author }}</td>
        <td>{{ book.price }}</td>
    </tr>
{% endfor %}

</tbody>
</table>

</body>
</html>