[請益] array問題
看板Soft_Job作者idforask (something is wrong者水)時間14年前 (2012/04/22 12:31)推噓7(7推 0噓 14→)留言21則, 11人參與討論串1/1
小弟以為宣告陣列一定要事先知道大小
如果要用動態的大小 必須配合指標
如
int* A;
int n;
scanf("%d",&n);
A = malloc(n*sizeof(int));
但發現以下程式碼仍可以編譯跟執行
想請問一下是小弟哪邊觀念有錯＠＠
int main() {
int n;
int i;
int A[n];
scanf("%d",&n);
for(i=0;i<n;i++)
A[i]=i;
for(i=0;i<n;i++)
printf("%d\n",A[i]);
}
小弟用dev C++
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