用while循环求编写求s=1+(1+2)+(1+2+3)+...+n)的值

n = int(input("请输入n的值："))
s = 0
i = 1
while(i <= n):
j = 1
temp = 1
while(j <= i):
temp *= j
j += 1
s += temp
i += 1
print("s的值为：", s)