flask
This commit is contained in:
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from flask import Flask
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from flask import render_template
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from flask import request
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from flask import make_response
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app = Flask(__name__)
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@app.route('/') # 路由 映射到根目录
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def hello_world():
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return 'Hello, World!'
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@app.route('/greet/<name>') # 视图，有传参
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def greet(name):
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return f'Hello, {name}!'
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@app.route('/submit', methods=['POST']) # 请求对象，定义了方法
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def submit():
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username = request.form.get('username')
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return f'Hello, {username}!'
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@app.route('/custom_response') # 响应对象
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def custom_response():
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response = make_response('This is a custom response!') # 响应体
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response.headers['X-Custom-Header'] = 'Value' # 响应头
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return response
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@app.route('/hello/<name>') # 使用模板渲染
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def hello(name):
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return render_template('hello.html', name=name)
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if __name__ == '__main__':
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app.run(debug=True)
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@@ -0,0 +1,24 @@
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from flask import Flask, render_template
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from flask_wtf import FlaskForm
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from wtforms import StringField, SubmitField
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from wtforms.validators import DataRequired, Email
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app = Flask(__name__)
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app.secret_key = 'your-secret-key' # 开发用，生产请用环境变量
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class MyForm(FlaskForm):
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name = StringField('Name', validators=[DataRequired()])
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email = StringField('Email', validators=[DataRequired(), Email()]) # ✅ 用 StringField + Email()
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submit = SubmitField('Submit')
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@app.route('/', methods=['GET', 'POST'])
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def form():
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form = MyForm()
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if form.validate_on_submit():
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name = form.name.data
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email = form.email.data
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return f'Name: {name}, Email: {email}'
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return render_template('wtf_form.html', form=form)
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if __name__ == '__main__':
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app.run(debug=True)
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@@ -0,0 +1,84 @@
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{
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"cells": [
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{
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"metadata": {},
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"cell_type": "markdown",
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"source": "## 安装flask",
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"id": "d08d0aec541e30fb"
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},
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{
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"cell_type": "code",
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"id": "initial_id",
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"metadata": {
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"collapsed": true,
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"ExecuteTime": {
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"end_time": "2025-08-29T01:31:15.189520Z",
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"start_time": "2025-08-29T01:30:52.483942Z"
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}
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},
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"source": "pip install flask",
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Collecting flask\r\n",
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" Downloading flask-3.1.2-py3-none-any.whl.metadata (3.2 kB)\r\n",
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"Collecting blinker>=1.9.0 (from flask)\r\n",
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" Downloading blinker-1.9.0-py3-none-any.whl.metadata (1.6 kB)\r\n",
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"Requirement already satisfied: click>=8.1.3 in /opt/conda/lib/python3.11/site-packages (from flask) (8.1.7)\r\n",
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"Collecting itsdangerous>=2.2.0 (from flask)\r\n",
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" Downloading itsdangerous-2.2.0-py3-none-any.whl.metadata (1.9 kB)\r\n",
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"Requirement already satisfied: jinja2>=3.1.2 in /opt/conda/lib/python3.11/site-packages (from flask) (3.1.2)\r\n",
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"Requirement already satisfied: markupsafe>=2.1.1 in /opt/conda/lib/python3.11/site-packages (from flask) (2.1.3)\r\n",
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"Collecting werkzeug>=3.1.0 (from flask)\r\n",
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" Downloading werkzeug-3.1.3-py3-none-any.whl.metadata (3.7 kB)\r\n",
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"Downloading flask-3.1.2-py3-none-any.whl (103 kB)\r\n",
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"\u001B[2K \u001B[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001B[0m \u001B[32m103.3/103.3 kB\u001B[0m \u001B[31m421.7 kB/s\u001B[0m eta \u001B[36m0:00:00\u001B[0m00:01\u001B[0m00:01\u001B[0m\r\n",
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"\u001B[?25hDownloading blinker-1.9.0-py3-none-any.whl (8.5 kB)\r\n",
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"Downloading itsdangerous-2.2.0-py3-none-any.whl (16 kB)\r\n",
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"Downloading werkzeug-3.1.3-py3-none-any.whl (224 kB)\r\n",
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"\u001B[2K \u001B[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001B[0m \u001B[32m224.5/224.5 kB\u001B[0m \u001B[31m1.1 MB/s\u001B[0m eta \u001B[36m0:00:00\u001B[0ma \u001B[36m0:00:01\u001B[0m\r\n",
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"\u001B[?25hInstalling collected packages: werkzeug, itsdangerous, blinker, flask\r\n",
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" Attempting uninstall: blinker\r\n",
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" Found existing installation: blinker 1.6.3\r\n",
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" Uninstalling blinker-1.6.3:\r\n",
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" Successfully uninstalled blinker-1.6.3\r\n",
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"Successfully installed blinker-1.9.0 flask-3.1.2 itsdangerous-2.2.0 werkzeug-3.1.3\r\n",
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"Note: you may need to restart the kernel to use updated packages.\n"
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]
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}
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],
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"execution_count": 1
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},
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{
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"metadata": {},
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"cell_type": "code",
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"outputs": [],
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"execution_count": null,
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"source": "",
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"id": "f9af5a802cbd2abe"
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 2
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython2",
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"version": "2.7.6"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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@@ -0,0 +1,17 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Form Example</title>
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</head>
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<body>
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<form action="/submit" method="post">
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<label for="name">Name:</label>
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<input type="text" id="name" name="name">
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<br>
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<label for="email">Email:</label>
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<input type="email" id="email" name="email">
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<br>
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>
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@@ -0,0 +1,9 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Hello</title>
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</head>
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<body>
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<h1>Hello, {{ name }}!</h1>
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</body>
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</html>
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@@ -0,0 +1,14 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Upload File</title>
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</head>
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<body>
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<form action="/upload" method="post" enctype="multipart/form-data"> <!--enctype指定表单类型，支持文件上传 -->
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<label for="file">File:</label>
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<input type="file" id="file" name="file">
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<br>
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<input type="submit" value="Upload">
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</form>
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</body>
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</html>
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@@ -0,0 +1,22 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Form Example</title>
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</head>
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<body>
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<form method="post">
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{{ form.hidden_tag() }}
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<div>
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{{ form.name.label }}<br>
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{{ form.name(size=32) }}
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</div>
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<div>
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{{ form.email.label }}<br>
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{{ form.email(size=32) }}
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</div>
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<div>
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{{ form.submit() }}
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</div>
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</form>
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</body>
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</html>
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@@ -0,0 +1,16 @@
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import os,sys #导入模块
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def add_prefix_files(): #定义函数名称
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old_names = os.listdir( path ) #取路径下的文件名，生成列表
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for old_name in old_names: #遍历列表下的文件名
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# if old_name!= sys.argv[0]: #代码本身文件路径，防止脚本文件放在path路径下时，被一起重命名
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if old_name.endswith('.mp4'): #当文件名以.txt后缀结尾时
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old_name1=old_name.split(".")[0]
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number = old_name1[-1]
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name = old_name1[:1]
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new_name =number+" "+name+".mp4"
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os.rename(os.path.join(path,old_name),os.path.join(path,new_name)) #重命名文件
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print (old_name,"has been renamed successfully! New name is: ",new_name) #输出提示
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if __name__ == '__main__':
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path = f'D:\Program File data\mp4\半音阶口琴' #运行程序前，记得修改主文件夹路径！
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add_prefix_files() #调用定义的函数，注意名称与定义的函数名一致
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@@ -0,0 +1,16 @@
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from flask import Flask, request, redirect, url_for
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app = Flask(__name__)
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app.secret_key = 'your_secret_key'
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@app.route('/upload', methods=['POST'])
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def upload():
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file = request.files.get('file')
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if file:
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filename = file.filename
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file.save(f'uploads/{filename}')
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return f'File uploaded successfully: {filename}'
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return 'No file uploaded'
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if __name__ == '__main__':
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app.run(debug=True)
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@@ -0,0 +1,74 @@
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{
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"cells": [
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{
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"metadata": {},
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"cell_type": "markdown",
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"source": "### 发送文件",
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"id": "259126b0b53fdd9f"
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},
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{
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"cell_type": "code",
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"id": "initial_id",
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"metadata": {
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"collapsed": true,
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"ExecuteTime": {
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"end_time": "2025-09-02T09:10:07.287763Z",
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"start_time": "2025-09-02T09:10:07.276787Z"
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}
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},
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"source": [
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"import requests\n",
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"\n",
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"url = 'http://127.0.0.1:5000/upload' # 你的 Flask 服务地址\n",
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"file_path = 'D:\\Idea Project\\python\\demo.py' # 要上传的文件路径\n",
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"\n",
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"with open(file_path, 'rb') as f:\n",
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" files = {'file': f}\n",
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" response = requests.post(url, files=files)\n",
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"\n",
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"print(response.text)"
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],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"File uploaded successfully: demo.py\n"
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]
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},
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{
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"name": "stderr",
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"output_type": "stream",
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"text": [
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"<>:4: SyntaxWarning: invalid escape sequence '\\I'\n",
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"<>:4: SyntaxWarning: invalid escape sequence '\\I'\n",
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"C:\\Users\\zy187\\AppData\\Local\\Temp\\ipykernel_3844\\645906349.py:4: SyntaxWarning: invalid escape sequence '\\I'\n",
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" file_path = 'D:\\Idea Project\\python\\demo.py' # 要上传的文件路径\n"
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]
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}
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],
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"execution_count": 5
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 2
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython2",
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"version": "2.7.6"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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@@ -0,0 +1,16 @@
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from flask import Flask,render_template,request
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app = Flask(__name__)
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@app.route('/')
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def form(): # 展示表格
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return render_template('form.html')
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@app.route('/submit',methods=['POST'])
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def submit(): #提交表格
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name = request.form.get('name')
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email = request.form.get('email')
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return f'Name:{name},Email:{email}'
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if __name__ == '__main__':
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app.run(debug=True)
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@@ -2,7 +2,7 @@ from selenium.webdriver import Chrome, Keys
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from selenium.webdriver.common.by import By
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import time
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chrom_dirverpath = 'C:\Users\zy187\IdeaProjects\python\venv\Scripts\chromedriver.exe'
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chrom_dirverpath = r'C:\Users\zy187\IdeaProjects\python\venv\Scripts\chromedriver.exe'
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web = Chrome(chromedriver_path=chrom_dirverpath)
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# web.get('http://lagou.com')
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@@ -0,0 +1,22 @@
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aiofiles==24.1.0
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aiohttp==3.12.15
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beautifulsoup4==4.13.5
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contractions==0.1.73
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itemadapter==0.12.1
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lxml==6.0.1
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nltk==3.9.1
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numpy==2.3.2
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pyecharts==2.0.8
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pymongo==4.14.1
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pymysql==1.1.2
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pyspark==4.0.0
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pytest==8.4.1
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redis==6.4.0
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Requests==2.32.5
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selenium==4.35.0
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self==2020.12.3
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setuptools==78.1.1
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six==1.17.0
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spacy==3.8.7
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Twisted==25.5.0
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w3lib==2.3.1
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