C语言函数指针示例：递增数据并输出

#include <stdio.h>

int change(int *data){ return (*data)++; }

int main(){ int data = 123; change(&data); printf("%d," ,data); data = change(&data); printf("%d," ,data); return 0; // main() function should return an integer } 运算结果内容：123, 124,