day09.2 C语言初阶——演示多个字符从两端移动，向中间汇聚

day09.2

谁能横刀立马，唯我飞牛大将军！

今天做点题778：

演示多个字符从两端移动，向中间汇聚。

while循环实现

#include<stdio.h>
#include<windows.h>

int main()
{
	 char str1[] = "Hello xian...";
	 char str2[] = "#############";
	 int start = 0;
	 int end = sizeof(str1) / sizeof(str2[0]) - 2;
	 //也可以换成 int end = strlen(str1) - 1;
	 while (start <= end)
	 {
		 str2[start] = str1[start];
		 str2[end] = str1[end];
		 start++;
		 end--;
		 Sleep(1000);
		 printf("%s\r",str2);

	 }
	 printf("\n");
	 system("pause");
	 return 0;
}

for循环实现

#include<stdio.h>
#include<windows.h>

int main()
{
	char str1[] = "Hello xian...";
	char str2[] = "#############";
	int start = 0;
	int end = sizeof(str1) / sizeof(str2[0]) -2 ;
// int end = strlen(str1) - 1;
	printf("%s\n", str2);
	for (; start <= end; start++, end--)
	{
		str2[start] = str1[start];
		str2[end] = str1[end];
		
		Sleep(1000);
		printf("%s\r", str2);

	}
	printf("\n");
	system("pause");
	return 0;
}

光标旋转，动态效果

#include<stdio.h>
#include<windows.h>

int main()
{
	
	const char *str = "|/-\\-";
	int index = 0;
	while (1){
		printf("%c\r", str[index % 4]);
		Sleep(1000);
		index++;
	}
	system("pause");
	return 0;
}