To set the marker for the XML column, open a FileInputStream, passing in the location of our XML file.
要为xml列设置标志符，需打开一个FileInputStream，并传递XML文件的位置。
2
The marker does not have to be named eof-any name would do-but the first-column rule is sacrosanct.
标志不一定要命名为EOF(任何名称都可以)，但是必须遵守第一列规则。
3
You can make each column bar or line marker a different color by double-clicking a marker and then selecting the vary colors by point check box on the options tab.