非常感激我队友大爹给我的复习资料

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#include<bits/stdc++.h>
using namespace std;

void print_1(const int (*a)[3], const int& n) {
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < 3; j++) {
            cout << a[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}

void print_2(const int a[][3], const int& n) {
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < 3; j++) {
            cout << a[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}

int main() {
    int a[5][3] = {{1}, {2, 2}, {3, 3, 3}};
    print_1(a, 5);
    int b[3][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
    print_1(b, 3);
    int c[4][3] = {1, 2, 3, 4};
    print_2(c, 4);
    return 0;
}
/*
该程序的输出结果为: 
===================
1 0 0 
2 2 0 
3 3 3 
0 0 0 
0 0 0 
      
1 2 3 
4 5 6
7 8 9

1 2 3 
4 0 0
0 0 0
0 0 0
===================
*/

传参

将多维数组a作为参数传入时，除第一个维度外，所有维度都必须有边界

指针

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void print_2(const int a[][3], const int& n)

普通

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void print_2(const int a[][3], const int& n)

第二个维度必须写上具体的维度，不写会报错

赋值

分行部分赋值

1
int a[5][3] = {{1}, {2, 2}, {3, 3, 3}};

全部赋值

1
int b[3][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9};

部分赋值

1
int c[4][3] = {1, 2, 3, 4};