1-19学习心得

#define  _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>

int main()
{
    int i = 0;
    int k = 0;
    int sum = 0;
    int ret = 1;
    int n = 1;
    for (n = 1; n <= 10; n++)
    {
        ret = 1;
        for (i = 1; i <= n; i++)
        {
            ret = ret*i;
        }
        k = ret;
        sum =sum + k;
    }

    printf("sum=%d\n", sum);
    return 0;
}

int main()
{
    int ret = 0;
    char password[20] = { 0 };
    printf("请输入密码:>");
    scanf("%s", password);
    while ((getchar()) != '\n')
    {
        ;
    }
    printf("请确认(Y/N):>");
    ret = getchar();
    if (ret == 'Y')
    {
        printf("确认成功\n");
    }
    else 
    {
        printf("放弃确认\n");
    }
    return 0;
}