编辑“︁C 语言回调函数”︁（章节）

=== 回调链 ===
多个回调函数可以串联起来形成处理流水线：

<syntaxhighlight lang="c">
#include <stdio.h>

typedef int (*Transformer)(int);

int applyTransformers(int value, Transformer transformers[], int count) {
    for (int i = 0; i < count; i++) {
        value = transformers[i](value);
    }
    return value;
}

int addOne(int x) { return x + 1; }
int doubleIt(int x) { return x * 2; }
int square(int x) { return x * x; }

int main() {
    Transformer transforms[] = {addOne, doubleIt, square};
    int result = applyTransformers(3, transforms, 3);
    printf("Result: %d\n", result);  // 输出: Result: 64 ((3+1)*2)^2
    
    return 0;
}
</syntaxhighlight>