Dear Dr. Lu,
Sorry for my failure again. To be honest, I kept trying to install Cygwin, but instead of chosing the default, I follow the tips here,http://www.33lc.com/article/7276_2.html. I can't find gcc-mingw, so I chosed other packages including mingw. However, I kept failing. I put my case in the attachment, it is the same thing everytime. And this has been repeated for several times. Is that because of my network? I rely on the campus-network which is slow these days.
I really hope I can make it and send a screenshot of successful installation to you. Sorry!
I am really grateful for your advice and I will definitely review this experience. Anyway, I enjoy it.
Yours
Mingyu