python求n的阶乘

Question

n = int(input()) # 从测试集读取正整数n
p = 1 # p为阶乘结果，初始值=1
i = 1 # i为循环变量

while

print("%d!=%d"%(n,p)) #输出n的阶乘

输入5
输出结果为5！= 120

Answer 1

n = int(input()) 
p = 1 
i = 1 
while i <= n:
    p = p * i
    i = i + 1
print("%d!=%d"%(n,p))