唉......

另发帖子，楼主下载附件看看，做个参考。

clear
x=0
y=0
for i=1 to 100
a=rand()
if a<=0.5
x=x+1
endif
b=rand()
if b<=0.5
y=y+1
endif
endfor
z=abs(x-y)
?"两个正面出现的次数是:"+str(min(x,y),3)+"次"
?"两个反面出现的次数是:"+str(100-max(x,y),3)+"次"
?"一正一反出现的次数是:"+str(z,3)+"次"