写出下列程序的运行结果。
clear
input "n=" to n &&设输入的数值n为5
for i=1 to 2*n-1
if i<=n
for j=1 to 2*(n-i+1)-1
??chr(64+n-i+1)
endfor
?
endif
endfor
EEEEEEEEE
DDDDDDD
CCCCC
BBB
A