[問題] 指標的型別
typedef struct node {
int key;
struct node *next;
}Node;
Node a;
我如果要用一個指標變數存&a
要宣告int *ptr還是Node *ptr ?
假如再宣告另一個變數存指向a的指標
是用
int **ptr2;
ptr2 = &ptr;
還是
Node **ptr2;
ptr2 = &ptr;
簡單來說 我搞不太懂要如何判斷指標要用哪一種型別
謝謝指教
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 220.134.48.111
推
06/09 21:01, , 1F
06/09 21:01, 1F
→
06/09 21:01, , 2F
06/09 21:01, 2F
→
06/09 21:01, , 3F
06/09 21:01, 3F
→
06/09 21:02, , 4F
06/09 21:02, 4F
→
06/09 21:03, , 5F
06/09 21:03, 5F
→
06/09 21:04, , 6F
06/09 21:04, 6F
→
06/09 21:04, , 7F
06/09 21:04, 7F
→
06/09 21:04, , 8F
06/09 21:04, 8F
→
06/09 21:07, , 9F
06/09 21:07, 9F
→
06/09 21:42, , 10F
06/09 21:42, 10F
→
06/09 21:43, , 11F
06/09 21:43, 11F
→
06/09 21:44, , 12F
06/09 21:44, 12F