c语言怎么用if语句实现如果输入什么，就输出什么？
在 C 语言中，可以使用 if 语句来实现根据输入内容输出不同的结果。具体实现方法如下：#include <stdio.h>
int main() {
int num;
printf("请输入一个数字：");
scanf("%d", &num);
if (num == 1) {
printf("你输入了1，输出A。\n");
} else if (num == 2) {
printf("你输入了2，输出B。\n");
} else if (num == 3) {
printf("你输入了3，输出C。\n");
} else {
printf("你输入了其他数字，输出其他结果。\n");
}
return 0;
}
这个需求完全不合理，如果输入啥就输出啥，没有if的任何用处
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