C :

#include<stdio.h>

 

int main(){

         int n,i,j;

         scanf("%d",&n);

        

         int a[n][n];

        

         int s = 1;

        

         for(i = 1;i <= n;i++){

                   for(j = 1;j <= n;j++){

                            a[i][j] = s;

                            s++;

                  

                   }

 

         }

        

         for(i = 1;i <= n;i++){

                   for(j = 1;j <= n;j++){

                            printf("%3d",a[i][j]);

                   }

                   printf("\n");

                  

         }

 

         return 0;

          

}

C++ :

#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstdio>

using namespace std;

int main(){
    int n,i,j,a[110][110];
    cin>>n;
    for(i=1;i<=n;i++){
    	for(j=1;j<=n;j++){
    		a[i][j]=((i-1)*n)+j;
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		
		cout<<endl;
	}
}

Pascal :

var 
   k,j,n,i:longint;
begin
  readln(n);
  k:=1;
  for j:=1 to n do
  begin
    for i:=1 to n do
    begin
      write(k:3);
      inc(k);
    end;
    writeln;
 end;
end.

Java :

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int n=scanner.nextInt();
		int[][] array=new int[n][n];
		int number=0;
		for(int i=1;i<=n;i++){
			for(int j=1;j<=n;j++){
				number++;
				array[i-1][j-1]=number;
				System.out.printf("%3s",number);
				if(number%n==0){
					System.out.println();
				}
			}
		}	
	}
}

Python :

n = int(input());
def getArray(m,n):
    '''
    :param m:  行
    :param n:  列
    :return:   m行n列的二维数组
    '''
    array = [[0for i in range(n)] for i  in range(m)];
    return array;

x = getArray(n,n);
k = 1
for i in range(0,len(x)):
    for j in range(0,len(x[i])):
        x[i][j] = k;
        k += 1



#打印二维数组的代码
for i in x:
    for j in i:
        print('%3d'%(j),end='')
    print()