QT运行显示错误  This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

QT编译的程序,在开发电脑上运行正常,COPY到目标电脑后运行显示

 原因是 除了  libgcc_s_seh-1.dll(64bit)，libgcc_s_dw2-1.dll(32bit)，libstdc++-6.dll，libwinpthread-1.dll，Qt5Core.dll，Qt5Gui.dll，Qt5Widgets.dll

之外，还需要  \plugins\platforms  下面的文件

QT运行显示错误 This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.