C++基础三-数组

#include <iostream>
using namespace std;

int main() {

    //1.定义数组
    /*int args[5] = { 1,2,3}; //数组不够5个元素，将被0填充
    for ( int i =0  ; i< 5 ; i++)
    {
        cout << args[i] << endl;
    }*/

    //2.数组名
     /*int arr[5] = { 1,2,3,4,5 };
    cout << sizeof(arr[0]) << endl; //统计数组某值的内存占用大小
    cout << sizeof(arr) << endl; //统计数组的内存占用大小
    cout << arr << endl; //统计数组内存首地址
    cout << &arr[0] << endl; //统计数组某元素的首地址*/

    /*//3.Find Max
    int arr[5] = { 30,20,40,10,50 };
    int max = 0;
    for (int i = 0 ; i <5; i ++) {
        if ( arr[i] > max ){
            max = arr[i];
        }
    }d
    cout << "Max is :" << max << endl;*/


    /*//3.多维数组
    // 定义数组1
    int arr[2][3] = 
    {
        {0,2,3},
        {4,5,6}
    }; 
    // 定义数组2
    int arr2[2][3] = {10,20,30,40,50,60};


    arr[0][0] = 1; //修改元素
    //遍历多维数组元素
    for (int i = 0; i < 2; i++)
    {
        for (int j = 0; j < 3; j++) {
            cout << arr[i][j];
        }
        cout << endl;
    }

    for (int i1 = 0; i1 < 2; i1++)
    {
        for (int j1 = 0; j1 < 3; j1++) {
            cout << arr2[i1][j1];
        }
        cout << endl;
    }*/

    int arr2[2][3] = { 10,20,30,40,50,60 };
    cout << sizeof(arr2) << endl;
    cout << (int)arr2 << endl;
    cout << (int)arr2[0] << endl;
    cout << (int)arr2[1] << endl;
    cout << (int)&arr2[1][0] << endl;
    cout << sizeof(arr2) / sizeof(arr2[0]) << endl; //行数

    return 0;
    }