500个常用软件(FORTRAN,VB,快照,录屏等)的下载地址,还有一些教程(如VB,TECPLOT等),所有的都在一个PDF中,有链接,有密码.-500 commonly used software (FORTRAN, VB, snapshot, recorded screen, etc.) to download the address, there are some tutorials (such as VB, TECPLOT, etc.), all in a PDF, there ar