flask加载本地图片或者gif

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简述

添加图片,建议先看看

这篇文章就是基于上面的实现的。不看也没关系,这样也会展示完全代码。

核心问题

插入本地图(或者gif)需要两步
将gif或者img放到static目录下,一般的话是自己在static里面创建一个img文件夹。

  • 文件目录:
    在这里插入图片描述

  • /templates/index.html

<!doctype html>
<html lang="en">
<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
          integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">

    <title>Hello, world!</title>
</head>
<body>
<div class="row">
    <div class="col-md-6 col-sm-12 col-xs-12">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h3>Students</h3>
            </div>
            <div class="panel-body">
                <div class="table-responsive">
                    <table class="table table-striped table-bordered table-hover">
                        <thead>
                        <tr>
                            {% for i in labels %}
                                <td>{{ i }}</td>
                            {% endfor %}
                        </tr>
                        </thead>
                        <tbody>
                        {% for i in content %}
                            <tr>
                                {% for j in i %}
                                    <td>{{ j }}</td>
                                {% endfor %}
                            </tr>
                        {% endfor %}
                        </tbody>
                    </table>
                </div>
            </div>
        </div>

    </div>
    <div class="col-md-6 col-sm-12 col-xs-12">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h3>Img</h3>
            </div>
            <div class="panel-body">
                <img src="{{ url_for('static', filename='img/gan-mnist.gif') }}"/>
            </div>
        </div>

    </div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
        integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
        crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
        integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
        crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
        integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
        crossorigin="anonymous"></script>
</body>
</html>

重点部分是:

	<div class="col-md-6 col-sm-12 col-xs-12">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h3>Img</h3>
            </div>
            <div class="panel-body">
                <img src="{{ url_for('static', filename='img/gan-mnist.gif') }}"/>
            </div>
        </div>

    </div>
  • static/img 放图片文件

  • app.py
    这个其实跟Python文件没什么关系,所以的话,这个还是有之前的查数据库的Python。

from flask import Flask, render_template
import pymysql

app = Flask(__name__)

conn = pymysql.connect(
    host='127.0.0.1',
    user='root',
    password='1234',
    db='jxgl',
    charset='utf8'
)


@app.route('/')
def hello_world():
    cur = conn.cursor()

    # get annual sales rank
    sql = "select * from student"
    cur.execute(sql)
    content = cur.fetchall()

    sql = "SHOW FIELDS FROM student"
    cur.execute(sql)
    labels = cur.fetchall()
    labels = [l[0] for l in labels]

    return render_template('index.html', labels=labels, content=content)


if __name__ == '__main__':
    app.run()

这个Python下的效果

在这里插入图片描述

简化版app.py

  • 不用改html代码
from flask import Flask, render_template

app = Flask(__name__)


@app.route('/')
def hello_world():
    return render_template('index.html')


if __name__ == '__main__':
    app.run()

在这里插入图片描述

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转载自blog.csdn.net/a19990412/article/details/84963861