C 习语和鲜为人知的事实[关闭]

C语言的奇妙魅力与鲜为人知的事实

c
#include 
int main() {
    int number = 42;
    int *pointer = &number;
    printf("变量 number 的值：%d%
", number);
    printf("指针 pointer 的值：%p%
", (void *)pointer);
    printf("通过指针访问的值：%d%
", *pointer);
    return 0;
}

c
#include 
int add(int a, int b) {
    return a + b;
}
int subtract(int a, int b) {
    return a - b;
}
int main() {
    int (*operation)(int, int);
    operation = add;
    printf("加法结果：%d%
", operation(5, 3));
    operation = subtract;
    printf("减法结果：%d%
", operation(5, 3));
    return 0;
}