Small sample project that demonstrate ping++ integration with Python Flask.

基本上抄了这里(https://github.com/lijinma/a-real-pingplusplus-pingxx-pingpp-example)的代码和ping++ python SDK的代码

• git clone
• virtualenv venv
• . ./venv/bin/activate
• pip install -r requirements.txt
• 设置环境变量 PINGXX_API_ID, PINGXX_SK
• python paywithflask.py
• 浏览 http://localhost:8888