我编写的程序如下:不知哪里出了问题,运行不正常,请指点一下我,谢谢! set talk off clear for x=100 to 999 a2=str(x,3) a=left(a2,1) a1=val(a) b2=str(x,3) b=subs(b2,2,1) b1=val(B) c2=str(x,3) c=right(c2,1) c1=val(c) if int(x/3)=x/3.and.c1=5 .or.b1=5 .or.a1=5 ? else ?"无符合条件的内容" endif next return