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use the help button in the message box to start program

上传者: 2019-09-20 09:31:42上传 ZIP文件 38.17KB 热度 28次
Itcontainsasfollowing:1.howtousemessageboxtostartaprogram.2.howtousemessageboxtolaunchtheHelpdocument.3.howtomakethetitleofthemesssageboxtoalignright.4.howtoshowtheHelpbuttoninthemessagebox.
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