{
var tmpArr = new Array()
var n = prompt("Please enter a number","0")
if (isNaN(n) || n<=0)
{
return 0
}
else if (n>0)
{
for (i = 0i <ni++)
{
tmpArr[i] = i
}
return tmpArr
}
}
document.write(arr())
while(true){var obj = prompt("输入一个整数:","")
if(/^\+?\d+$/.test(obj)){
var sum = 0
for(var i = 1 i <= obj i++){
var x = 1
for(var j = 1 j <= i j++){
x *= j
}
sum += x
}
alert("1的阶乘到"+obj+"的阶乘的和: " + sum)
break
}else{
continue
}
}
