vs2013編譯VC++源碼，錯誤：
error MSB8031: Building an MFC project for a non-Unicode character set is deprecated. You must change the project property to Unicode or download an additional library. See http://go.microsoft.com/fwlink/p/?LinkId=286820 for more information.
解決方案：
從微軟官網下載安裝包vc_mbcsmfc.exe，然后裝了就OK了。