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#define _CRT_SECURE_NO_WARNINGS 1#include <stdio.h>struct Book{ char name[30]; char id[20]; int price;};int main(){ //结构体 struct Book book = { "C语言入门到实践", "202110114", 68}; //三种打印方式： //第一种: printf("%s %s %d\n", book.name, book.id, .