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请教如何实现选择下拉列表框的值之后执行相应的操作

WBOY
WBOYOriginal
2016-06-13 12:42:38982browse

请问怎么实现选择下拉列表框的值之后执行相应的操作
下拉列表框的值是一些文件名,我想实现的功能就是,选择下拉列表相应的文件之后,显示这个文件的下载地址。不要点查询按钮。

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