http://blog.csdn.net/whuslei/article/details/5665289
| 1 | //定义一个结构体，类型为struct Student |
| 2 | struct Student |
| 3 | { |
| 4 | string name; |
| 5 | double eng; |
| 6 | double ch; |
| 7 | }; |
| 8 | |
| 9 | //定义了一个结构体，类型为struct Student；且定义了一个结构体实例，名叫Stu |
| 10 | struct Student |
| 11 | { |
| 12 | string name; |
| 13 | double eng; |
| 14 | double ch; |
| 15 | }Stu; |
| 16 | |
| 17 | //定义了无名的结构体，且定义了一个结构体实例，名叫Stu |
| 18 | struct |
| 19 | { |
| 20 | string name; |
| 21 | double eng; |
| 22 | double ch; |
| 23 | }Stu; |
| 24 | |
| 25 | //重定义结构体，类型为struct Student 或者是Stu |
| 26 | typedef struct Student |
| 27 | { |
| 28 | string name; |
| 29 | double eng; |
| 30 | double ch; |
| 31 | }Stu; |
| 32 | |
| 33 | //重定义结构体，类型为Stu |
| 34 | typedef struct |
| 35 | { |
| 36 | string name; |
| 37 | double eng; |
| 38 | double ch; |
| 39 | }Stu; |
| 40 |
如果用typedef则，Stu stu;
否则，struct Student stu;