錯誤信息如下：

*** ERROR #  79 ***

  DTPG data does not create any DVGRID data.

  There are no free referenced GRIDs.

  There may be no elements associated with the PSHELL data.

  LOAD or BOTH may be specified and all grids may be loaded.

  BC, SPC, or BOTH may be specified and all grids may be SPCed.

各參數應該都正確設置了，但還是報錯，感謝好心人幫助！