陣列的長度

鄭繼威

假設有一個陣列宣告如下：
int a[]= {5,4,3,7,6,5,9,8,3,4,2,1,5,3,5,7,8,1,3,4,3,2,6,7,9,6,6,9,0,4,5,6,5,1,7,8,7,9,6,0,2,5,6,7,9,3,4,0,9,8,6,1};

試運用 sizeof() 函式，求出該陣列的成員數量。

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. int main()
   
5. {
   
6.     int a[]= {5,4,3,7,6,5,9,8,3,4,2,1,5,3,5,7,8,1,3,4,3,2,6,7,9,6,6,9,0,4,5,6,5,1,7,8,7,9,6,0,2,5,6,7,9,3,4,0,9,8,6,1};
   
7.     cout<<sizeof(a)/sizeof(int)<<endl;
   
8.     system("pause");
   
9.     return 0;
   
10. }

複製代碼