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Python专用的实时K线数据接口。
购买说明
从2023年12月7日开始，推出VNklineservice（实时K线数据）。
因为K线服务涉及数据流量成本和人工维护的成本，也是支持开源模式的一部分 为了保证服务质量，开展收费服务，具体可咨询https://www.vnpy.cn 官网客服 或通过关注微信公众号，向微信公众号提问。
CTP K线服务 免费， 0元/年，每分钟查询不超过1次
如果要避免延迟、多用户争夺带宽的问题，请购买商用版本
https://gitee.com/vnpypro/vnklineservice
主要支持CTP接口，支持国内149家期货公司程序化交易，实现程序化交易是免费的。 支持股指期货、商品期货、股指期权、商品期权， 支持中国8大合规交易所中的5所，包括上海期货交易所，大连期货交易所、 郑州期货交易所、中金所、能源所。
目录说明： .idea：是Pycharm是项目配置文件目录，指定项目路径等等 strategy： 策略存放目录 temp： CTP接口产生的临时流文件存放目录
软件架构
软件架构说明 这是使用PyQt调用 VNklineservice调用K线数据并显示的例子。
Demo运行教程
安装Python
安装PyCharm
安装PyQt, pyqtgraph，pandas, numpy 等模块
使用说明
接口文件只有3个文件vnklineservice.dll、vnklineservice.py、vnklineservice.ini
其他属于对接口封装的框架，并用于显示K线
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