谁能告诉我一下两个 定义有什么区别啊？
typedef struct xy {
int x, y;
struct *pxy;
}xy;

typedef struct {
int x, y;
struct *pxy;
}xy;

晕写错了更正下
typedef struct xy {
int x, y;
struct xy *pxy;
}xy;

typedef struct {
int x, y;
struct xy *pxy;
}xy;