说明：  Visual Fortran编程指南.pdf 本书首先介绍了目前先进的FORTRAN 90语言标准的主要内容，然后详细讲解了使用Visual FORTRAN开发科学计算程序的方法和技术。
(Visual Fortran Programming Guide. Pdf of this book begins with the current advanced standards for FORTRAN 90 the main elements of the language, and then explain in detail the use of Visual FORTRAN program to develop scientific methods and techniques.)