c语言输出n!的源代码
时间: 2023-04-05 20:03:20 浏览: 124
以下是C语言输出n!的源代码:
#include <stdio.h>
int main() {
int n, i;
long long factorial = 1;
printf("请输入一个正整数: ");
scanf("%d", &n);
// 如果输入的是负数,则输出错误信息
if (n < 0)
printf("错误!负数没有阶乘。");
else {
for (i = 1; i <= n; ++i) {
factorial *= i; // 阶乘计算
}
printf("%d 的阶乘为 %lld", n, factorial);
}
return 0;
}
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