请教：read labview measurement.vi，如何多次调用？

 readlvm.vi

i'm not quite understand your question
what you want to do is to select a LVM file and run it, am i right? and then? what would like to do? close the file and select another one?

具体见原文的附件。
希望实现以下功能：点击'save lvm'，即保存数据，数据以序列形式保存，每2w个点一个文件；点击'read lvm'，即弹出对话框，选择lvm文件，数据在graph中重现。如果想再次重现另一个lvm文件，再次点击'read lvm'，却不会再次弹出选择文件的对话框。如何解决？谢谢

try this one
"Read Lvm" just simply read the file content and sned it to waveform graph.
I suggest you to use "file dialog" to select certain file, then send the path to "Read Lvm"

 readlvm.vi

多谢，我试试。