Typedef
Typedef作用：起别名
1>typedef int Interger;
2>typedef char * string;
3>typedef struct student stu;
4>typedef enum Season season;
5>typedef int (*MyPointer)(int, int);// 指向函数的指针
6>typedef struct Person
{
        int age;
} myPerson;
7>typedef enum Week
{
        monday;
        tuesday;
        wendsday;
} myWeek;

使用宏定义起别名：
1>#define  Interger  int
  #define  string  char *
2>typedef  int  Interger;
  typedef  char *  string;

Typedef
Typedef作用：起别名
1>typedef int Interger;
2>typedef char * string;
3>typedef struct student stu;
4>typedef enum Season season;
5>typedef int (*MyPointer)(int, int);// 指向函数的指针
6>typedef struct Person
{
        int age;
} myPerson;
7>typedef enum Week
{
        monday;
        tuesday;
        wendsday;
} myWeek;

使用宏定义起别名：
1>#define  Interger  int
  #define  string  char *
2>typedef  int  Interger;
  typedef  char *  string;