C++ typedef的一个用法
1.不适用typedef:
#include <iostream> #include <cstring> using namespace std; struct Books { char title[50]; char author[50]; char subject[100]; int book_id; }; int main() { struct Books book; strcpy(book.title, "C 教程"); strcpy(book.author, "Runoob"); strcpy(book.subject, "编程语言"); book.book_id = 12345; printf("书标题 : %s\n", book.title); printf("书作者 : %s\n", book.author); printf("书类目 : %s\n", book.subject); printf("书 ID : %d\n", book.book_id); system("pause"); return 0; }
2.使用typedef:
#include <iostream> #include <cstring> using namespace std; typedef struct Books { char title[50]; char author[50]; char subject[100]; int book_id; }; int main() { struct Books book; strcpy(book.title, "C 教程"); strcpy(book.author, "Runoob"); strcpy(book.subject, "编程语言"); book.book_id = 12345; printf("书标题 : %s\n", book.title); printf("书作者 : %s\n", book.author); printf("书类目 : %s\n", book.subject); printf("书 ID : %d\n", book.book_id); system("pause"); return 0; }