获取用户名描述的函数

  DATA : LV_USER TYPE SYUNAME.
  DATA  ： LS_USR_DATA TYPE QISRSUSER_DATA.


  LV_USER = SY-UNAME.

  CALL FUNCTION 'ISR_GET_USER_DETAILS'
    EXPORTING
      ID_USER_ID     = LV_USER
    CHANGING
      IS_USER_DATA   = LS_USR_DATA
    EXCEPTIONS
      USER_NOT_FOUND = 1
      OTHERS         = 2.