结构体变量传参

• 以返回值的方式输出

1 #include<stdio.h>
 2 typedef struct Point{
 3     int x;
 4     int y;
 5 } Point;
 6 void Display(Point point)
 7 {
 8     printf("x:%d \n",point.x);
 9     printf("y: %d \n",point.y);
10 }
11 Point SetPoint(int x,int y)
12 {
13     Point p;
14     p.x=x;
15     p.y=y;
16     return p;
17  } 
18  int main()
19  {
20      Point point;
21      point=SetPoint(3,5);
22      Display(point);
23  }

• 结构作为指针传参

1 #include<stdio.h>
 2 typedef struct Point{
 3     int x;
 4     int y;
 5 } Point;
 6 void Display(Point point)
 7 {
 8     printf("x:%d \n",point.x);
 9     printf("y: %d \n",point.y);
10 }
11 void SetPoint(Point *p,int x,int y)
12 {
13     //两种写法都可以 
14     
15     (*p).x=x;
16     p->y=y; 
17  } 
18  int main()
19  {
20      Point point;
21      SetPoint(&point,3,5);
22      Display(point);
23  }