W3School TIY Editor

#include <stdio.h> struct Car { char brand[30]; int year; }; void updateYear(struct Car *c) { c->year = 2026; } int main() { struct Car myCar = {"Volvo", 2025}; updateYear(&myCar); // 传递结构体指针 printf("品牌：%s\n", myCar.brand); printf("年份：%d\n", myCar.year); return 0; }