clear
store 0 to a1,a2,a3
for i=1 to 10
input "请输入一个数:" to x
do case
case x>0
a1=a1+1
case x=0
a2=a2+1
case x
0a1=" property="og:description"/>
clear
store 0 to a1,a2,a3
for i=1 to 10
input "请输入一个数:" to x
do case
case x>0
a1=a1+1
case x=0
a2=a2+1
case x