In addition to accessing and manipulating data, however, another common use of JSP scripting elements is flow control.
不过，除了访问和操作数据之外，jsp脚本编制元素的另一个常见用法是流控制。
In the manipulating stage, the program makes changes to the data by adding, modifying, and deleting elements in the XML document.
在操作阶段中，该程序对XML文档中的元素进行添加、修改和删除的数据更新操作。
Users can modify data and screen elements instantly by directly manipulating the UI on the their machines.
用户能够通过直接处理其机器上的UI即时修改数据和屏幕元素。
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