利用fortran计算电偶源EX分量定义的视电阻率程序！-FORTRAN calculation Galvanic source the EX component of the definition of apparent resistivity program!

利用垂直磁场强度求解全域视电阻率，从而实现顺便电磁一维正演计算，为反演奠定基础。-Using vertical magnetic field strength to solve the whole domain of apparent resistivity, the way to achieve a one-dimensional forward modeling of electromagnetic lay the foundation for the inversion.