<html>
<body>
<script>
var a =new Array(9) ;
a[0] =1
a[1] = 2
a[2] =3
a[3] =4
a[4] = 5
a[5] =6
a[6] =7
a[7] =8
a[8] =9
for (i=0;i<9;i++)
for (k=0;k<9;k++)
for (h=0;h<9;h++)
for (g=0;g<9;g++)
for (f=0;f<9;f++)
for (d=0;d<9;d++)
for (s=0;s<9;s++)
for (z=0;z<9;z++)
for (x=0;x<9;x++) {
document.write(a[i],a[k],a[h],a[g],a[f],a[d],a[s],a[z],a[x])
}
</script>
</body>
</html>数据太多， 浏览器受不了了，循环执行了9^9次