Question

用c语言编一个程序：根据用户输入的数字（1~7），输出英文的星期名称。怎么做

Answer 1

思路：定义一个字符串数组，把星期名分别放到该字符数组的1-7位置，再输入一个整型数n，则直接输出该数组n位置的字符串。

参考代码：

#include<stdio.h>
#include<string.h>
int main()
{
	char a[8][20]={"","monday","tuesday","wednesday","thursday","friday","saturday","sunday"};
	int n;
	scanf("%d",&n);
	puts(a[n]);
	return 0;
 } 
 /*
输出：
7
sunday
 */

Answer 2

给你编译通过的，你看看

#include<stdio.h>
void main()
{
int num;
while(1)
{
printf("输入1-7\n");
scanf("%d",&num);
while(1)
{
if (1<=num<=7) break;
else printf("重新输入\n");
scanf("%d",&num);
}
switch (num)
{
case 1: printf("monday");break;
case 2: printf("tuesday"); break;
case 3: printf("wednesday");break;
case 4: printf("thursday"); break;
case 5: printf("friday");break;
case 6: printf("saturday"); break;
case 7: printf("sunday"); break;
}
}
}

Answer 3

#include<stdio.h>
int main()
{
int i;
scanf("%d",&i);
switch(i)
{
case 1: printf("Monday");break;
case 2: printf("Tuesday");break;
case 3: printf("Wednesday");break;
case 4: printf("Thursday");break;
case 5: printf("Friday");break;
case 6: printf("Saturday");break;
case 7: printf("Sunday");break;
}
return 0;
}

Answer 4

方法1：switch…case语句，这个方法较常用
方法2：用if…else语句
初学者建议两种方法都尝试一下

Answer 5

int num
scanf("%d",&num);
switch(num)
{
case 1: printf("Monday");
case 2: printf("Tuesday");
//..........
}