简单练习2

1.编写代码，演示多个字符从两端移动，向中间汇聚

#define _CRT_SECURE_NO_WARNINGS
#include
#include 
#include 

int main()

{
	char arr1[] = "welcome to Lizixiaohanhan";
	char arr2[] = "#########################";
	int left = 0;
	int right = strlen(arr1) - 1;

	while (left <= right)
	{
		arr2[left] = arr1[left];
		arr2[right] = arr1[right];
		printf("%sn", arr2);
		Sleep(1000);
		left++;
		right--;
	}
	return 0;
}

2.编写代码，模拟用户登录情形，并且只能登录三次。

#define _CRT_SECURE_NO_WARNINGS
#include
#include
int main()
{
	int i = 0;
	char password[20] = { 0 };
	for (i = 0;i < 3;i++)
	{
		printf("请输入密码:>");
		scanf("%s", password);
		if (strcmp(password, "123456") == 0)
		{
			printf("登陆成功n");
			break;

		}
		else
		{
			printf("密码错误，请重新输入！n");

		}
	}
	if (i == 3)
		printf("三次密码均错误，推出n");
	return 0;
}