利用Fortran 90 接口读取已经创建的nc文件，并且检验其读写是否正确-The use of Fortran 90 interface to read nc file has been created, and test its read and write correctly

附件为源代码，在vf中编译后生成lib和mod文件，加入到visual fortran的路径中在程序中调用，可以方便地生成netcdf(.nc)文件。-Annex to the source code, compiled in the vf the lib and mod files generated by adding the path to the visual fortran call in the program, you can easily generate netcdf (. N