【求助】程序

VERSION 2.0
REVNUM 426
零件LIP_EX2的列表
  
INPUT
thickness_xontrol yes_no
"do you want to control the shell thickness:"
IF thickness_control == yes
!*** 错误:行包含错误符号或是其它无效的
shell_thickness number
"enter the shell thickness:"
end if
END INPUT
  
RELATIONS
IF thickness_control == yes
!*** 错误:关系中有一个错误.
d48=shell_thickness
else
d48=0.1
endif
END RELATIONS
(上面错哪了?)

liuhanyimei wrote:
VERSION 2.0  
  REVNUM 426  
  零件LIP_EX2的列表  
  
  INPUT  
  thickness_xontrol yes_no  
  "do you want to control the shell thickness:"  
  IF thickness_control == yes  
  !*** 错误:行包含错误符号或是其它无效的  
  shell_thickness number  
  "enter the shell thickness:"  
  end if  
  END INPUT  
  
  RELATIONS  
  IF thickness_control == yes  
  !*** 错误:关系中有一个错误.  
  d48=shell_thickness  
  else  
  d48=0.1  
  endif  
  END RELATIONS  
  (上面错哪了?)

谢谢 犯这种错误,无地自容呀!!!