天气网的天气城市是代码，citycode.txt里是代码，为了方便访问，再初始化事，会把代码插入一个sqlite数据库中、、 数据库文件和代码的txt在citycode压缩包里。放到与程序一个目录即可-Weather Network weather city is the code, citycode.txt in the code, in order to facilitate access to, and then initialize it, put code into an sqli