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Commit 2a860d2

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yitian
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添加了flask-sample,演示了flask的基本使用方法。
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‎README.md‎

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- basic 。 基础练习。
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- sql 。数据库练习
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## flask-sample
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添加了flask的简单例子,演示了基本使用方法。
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![运行截图](flask-sample/flask-sample.PNG)

‎flask-sample/.gitignore‎

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# Created by .ignore support plugin (hsz.mobi)
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### JetBrains template
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# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
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# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
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# Translations
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gen

‎flask-sample/flask-sample.PNG‎

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from werkzeug.utils import secure_filename
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from flask import *
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app = Flask(__name__)
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app.config['DEBUG'] = True
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app.config['SECRET_KEY'] = '加密Session所需的密钥'
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@app.route('/')
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def index():
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return render_template('index.html')
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@app.route('/greet/<name>')
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def greet(name=None):
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return render_template('greet.html', name=name)
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@app.route('/greet')
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def greet2():
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name = request.args['name']
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return render_template('greet.html', name=name)
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@app.errorhandler(404)
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def page_not_found(error):
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return render_template('404.html')
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@app.route('/form', methods=['get'])
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def get_form():
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return render_template('form.html')
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@app.route('/form', methods=['post'])
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def submit_form():
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form = request.form
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file = request.files['file']
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if file:
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app.logger.debug(f'filename:{file.filename}')
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app.logger.debug(f'secure_filename:{secure_filename(file.filename)}')
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file.save(f'uploaded_files/{file.filename}')
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return render_template('form-result.html', data=form)
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@app.route('/redirect_to_index')
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def redirect_to_index():
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return redirect(url_for('index'))
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@app.route('/get_request_data')
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def get_request_data():
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data = request.values
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return render_template('form-result.html', data=data)
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@app.route('/add_cookie')
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def add_cookie():
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return render_template('add-cookie.html')
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@app.route('/show_cookies', methods=['post', 'get'])
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def show_cookies():
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name = request.values.get('cookie_name')
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value = request.values.get('cookie_value')
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if name is None:
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name = ''
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if value is None:
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value = ''
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cookies = request.cookies
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template = render_template('show-cookies.html', cookies=cookies)
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resp = make_response(template)
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resp.set_cookie(name, value)
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return resp
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@app.route('/files')
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def get_uploaded_file():
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filename = request.args['filename']
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return send_file(filename)
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def before_request():
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import glob
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files = glob.glob('uploaded_files/*')
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flist = []
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for f in files:
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flist.append(f)
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session['files'] = flist
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if __name__ == '__main__':
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app.before_request(before_request)
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app.run()

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