#include <iostream>
using namespace std;
int main()
{

    //陣列

    //1.資料型別 陣列名[陣列長度];
    //2.資料型別 陣列名[陣列長度]=｛值1.值2...｝;
    //3.資料型別 陣列名[]= ｛值1.值2...｝;


    //1.資料型別 陣列名[陣列長度];
    int arr[5];
    //給陣列中的元素進行賦值
    //陣列元素下標從0開始
    arr[0] = 10;
    arr[1] = 20; 
    arr[2] = 30;
    arr[3] = 40;
    arr[4] = 50
 
;
    //訪問資料元素
    cout << arr[0] << endl;
    cout << arr[1] << endl;
    cout << arr[2] << endl; 
    cout << arr[3] << endl; 
    cout << arr[4] << endl;



    //2.資料型別 陣列名[陣列長度]=｛值1.值2...｝;
    //如果在初始化資料時，沒寫填寫完整，會用0來填寫剩餘數
    int arr2[5] = {10
 
,20,30,40,50};
    //cout << arr2[0] << endl;
    //cout << arr2[1] << endl;
    //cout << arr2[2] << endl;
    //cout << arr2[3] << endl;
    //cout << arr2[4] << endl;
    //利用迴圈輸出陣列中的元素
    for (size_t i = 0; i < 5; i++)
    {
        cout << arr2[i]<<endl;
    }



    
 
//3.資料型別 陣列名[]= ｛值1.值2...｝;
    //定義陣列時必須有初始長度
    int arr3[] = { 90,80,70,60,50,40,30,20,10 };
    for (size_t i = 0; i < 9; i++)
    {
        cout << arr3[i] << endl;
    }


    system("pause");
    return 0;
}