本程序用JAVA编制，通过读取有关天气的XML文件的数据对象，然后绘制出相关的curv曲线-This procedure using JAVA establishment, by reading the relevant weather data XML document object, then draw the relevant curv curve

联网后通过域名直接获取google的5日天气，获取的信息为xml类型。-Interconnection using the domain name of the 5 direct access to google weather information obtained xml type.