struct excursions{signed int direction;         
                  int remove;                                       
} excursions;


struct deflexion{signed int direction;           
                  int angle;   
} deflexion;

struct body_coordinates{
signed long int right_x_coordinates;        
signed long int right_y_coordinates;      
int x_coordinates_increment;               
int y_coordinates_increment;            
} body_coordinates;

 struct swy_body_property{
   struct body_coordinates body_coordinates;
   
  float showy_body_direction;

  float swy_a;
  float swy_a_direction;

  float swy_v;
  float swy_v_direction;
  struct excursions swy_displacement；
  struct deflexion swy_angle；
  } swy_body_property;

报错位置为下述各句：
void body_adjust(int a,struct swy_body_property* current_property)
{
switch(a){
case 0x7777：
          * current_property->swy_displacement->direction=0;
                            * current_property->swy_displacement->remove=0;
          * current_property->swy_angle->direction=0;
          * current_property->swy_angle->angle=0;
           break;

case 0x7377：
          * current_property->swy_displacement->direction=1;
                             * current_property->swy_displacement->remove=remove1;
          * current_property->swy_angle->direction=1;
          * current_property->swy_angle->angle=l_angle8;
          break;
case 0x7773:  
          * current_property->swy_displacement->direction=-1;
                            * current_property->swy_displacement->remove=remove1;
          * current_property->swy_angle->direction=-1;
          * current_property->swy_angle->angle=l_angle8;
         break;
case 0x7767:  
          * current_property->swy_displacement->direction=1;
                           * current_property->swy_displacement->remove=remove1;
          * current_property->swy_angle->direction=-1;
          * current_property->swy_angle->angle=l_angle8;
           break;
case 0x6777:  
          * current_property->swy_displacement->direction=-1;
                            * current_property->swy_displacement->remove=remove1;
          * current_property->swy_angle->direction=-1;
          * current_property->swy_angle->angle=l_angle8;
         break;
错误信息为：
"functions_source.c", line 177: error: expression must have pointer type
"functions_source.c", line 178: error: expression must have pointer type
"functions_source.c", line 179: error: expression must have pointer type
"functions_source.c", line 180: error: expression must have pointer type
"functions_source.c", line 194: error: expression must have pointer type
"functions_source.c", line 195: error: expression must have pointer type
"functions_source.c", line 196: error: expression must have pointer type
"functions_source.c", line 197: error: expression must have pointer type
"functions_source.c", line 203: error: expression must have pointer type
"functions_source.c", line 204: error: expression must have pointer type
"functions_source.c", line 205: error: expression must have pointer type
"functions_source.c", line 206: error: expression must have pointer type
"functions_source.c", line 211: error: expression must have pointer type
"functions_source.c", line 212: error: expression must have pointer type
"functions_source.c", line 213: error: expression must have pointer type
"functions_source.c", line 214: error: expression must have pointer type
"functions_source.c", line 219: error: expression must have pointer type
"functions_source.c", line 220: error: expression must have pointer type
"functions_source.c", line 221: error: expression must have pointer type
"functions_source.c", line 222: error: expression must have pointer type
20 errors detected in the compilation of "functions_source.c".
初学者 无知 敬请各位大侠指教

将：
* current_property->swy_displacement->direction=0;
改为：
current_property->swy_displacement.direction=0;
其它一样处理

谢谢了，能解释一下吗。我想知道错误原因，不能知其然而不知其所以然
谢谢，

current_property是指针。对指针使用->
*current_property是结构体（即指针指向的东西），对结构体使用.
结构体的域是什么就用什么。你那个域是结构体，所以用.