请你写出使用python flask渲染多个HTML的代码，其中有一个HTML具有汇总其余HTML的效果

Sure, here is an example code for using Python Flask to render multiple HTML templates, where one template acts as a summary of the others:

from flask import Flask, render_template

app = Flask(__name__)

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

@app.route('/page1')
def page1():
    return render_template('page1.html')

@app.route('/page2')
def page2():
    return render_template('page2.html')

@app.route('/summary')
def summary():
    content = {
        'page1': render_template('page1.html'),
        'page2': render_template('page2.html')
    }
    return render_template('summary.html', **content)

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

In this code, we use Flask's `render_template` function to render HTML templates for each of our pages. The `index` function returns our main index.html file, while the `page1` and `page2` functions return their respective HTML pages.

The `summary` function uses the `render_template` function to render the page1.html and page2.html templates, and passes them as a dictionary to the summary.html template. The double-asterisk syntax (`**content`) in the `render_template` function unpacks the dictionary and passes its contents as arguments to the template.

On the summary.html template, we can then use the variables `page1` and `page2` to display the summary of our other HTML pages.