Go: package main

import (
	"fmt"
	"strconv"
)

func main() {
	for _, leftValue := range MultiplicationTableNum(9) {
		for _, rightValue := range MultiplicationTableNum(9) {
			strLeftVal, strRightVal, strMulti := strconv.Itoa(leftValue), strconv.Itoa(rightValue), strconv.Itoa(Multiplication(leftValue, rightValue))
			fmt.Println(strLeftVal + "x" + strRightVal + "=" + strMulti)
		}
	}
}

func MultiplicationTableNum(num int) []int {
	multiNum := []int{}
	for i := 1; i <= num; i++ {
		multiNum = append(multiNum, i)
	}
	return multiNum
}

func Multiplication(x, y int) int {
	return x * y
}

C++: #include"iostream"
using namespace std;
int main()
{
	int a, b, c;
	for (a = 1; a < 10; a++)
	{
		for (b = 1; b < 10; b++)
		{
			c = a*b;
			cout << a << "x" << b << "=" << c << endl;
		}
	}
	return 0;
}

C++: #include<iostream>

using namespace std;

int main() {
	for (int i = 1; i <= 9; i++) {
		for (int k = 1; k <= 9; k++) {
			cout << i << "×" << k << "=" << i*k << endl;
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

int main()
{
    for(int i = 1; i <= 9; ++i){
        for(int j = 1; j <= 9; ++j){
            cout << i << "x" << j << "=" << i*j << endl;
        }
    }
    return 0;
}

C++: #include <iostream>
#include <cstdio>

using namespace std;

int main() {
	for (int i = 1; i <= 9; i++) {
		for (int j = 1; j <= 9; j++) {
			printf("%d*%d=%d\n", i, j, i*j);
		}
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main(void){
    int i = 1;
    int j = 1;

    for(i = 1;i<=9;i++){
        for(j = 1;j<=9;j++){
            cout << i << "x" << j << "=" << i*j << endl;
        }
    }

    return(0);
}

C++: #include <iostream>
using namespace std;

int main() {
	for (int i = 1; i <= 9; i++) {
		for (int j = 1; j <= 9; j++) {
			cout << i << "x" << j << "=" << i * j << endl;
		}
	}
	return 0;
}

C++: #include <stdio.h>
#include <math.h>
#include <iostream>
using namespace std;

int main(void){
	int i,j;

	for(i=1;i<10;i++){
		for(j=1;j<10;j++){
			std::cout << i << "x" << j << "=" << i*j << "\n";
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
	for(int i=1;i<10;i++){
		for(int j=1;j<10;j++){
			std::cout<<i<<"x"<<j<<"="<<i*j<<std::endl;
		}
	}
	std::system("pause");
	return 0;
}

C++: #include <iostream>
using namespace std;

int main () {
    for (int i = 1; i <= 9; i++) for (int j = 1; j <= 9;j ++) {
        cout << i << "x" << j << "=" << i * j << endl;
    }
}

C++: #include <iostream>
using namespace std;

int main() {
  int a = 1;
  int b = 1;
  for ( a == 9 && b == 10;) {
    cout << a << "x" << b << "=" << a*b << endl;
    ++b;
    if ( b = 10) {
      ++a;
      int b = 1;
    }

  }

  return 0;

}

C++: #include <iostream>
using namespace std;

int main(void){
int x,y;
for(x=0;x<10;x++){
   for(y=0;y<10;y++){
   cout <<x*y; 
    }
}
    return 0;
}

C++: #include <iostream>

int main()
{
    for(int i = 1; i<10; i++) {
        for(int j = 1; j < 10;j++) {
            std::cout << i << "*" << j << = << i*J << std::endl;
        }
    }
    return 0;
}

C++: #include <stdio.h>
using namespace std;

int main() {
	for (int i = 1; i < 10; i++)
		for (int j = 1; j < 10; j++)
			cout << i << "x" << j << "=" << i*j << endl;
}

C++: #include <iostream>
using namespace std;
int main(void){
    for(int i=1;i<10;i++){
        for(int j=1;j<10;j++)
        cout << i << "x" << j << "=" << (i*j) <<endl;
    }
    
}

C++: #include <iostream>
using namespace std;

int main() {
  int a;
  int b;
  a = 1;
  b = 1;
  for (a < 10 && b < 9) {
    cout << b << "x" << a << "=" << a*b << endl;
    ++a;
    if (a == 10 && b <= 8)
    ++b;
    a = 1;
  }
  return 0;
}

C++: #include<stdio.h>

int main(void){
	int i,j;
	for(i=1;i<=9;i++){
		for(j=1;j<=9;j++){
			printf("%dx%d=%d\n",i,j,i*j);
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

void QQ(int i,int j){
	if(1 <= i){ QQ(i - 1, j); };
	if(1 <= j){ QQ(i, j - 1); };
	cout << i << "x" << j << "=" << i*j << endl;
}

int main(){
    QQ(9,9);
    return 0;
}

C++: #include <iostream>
using namespace std;

int main(){

    for(int i = 1; i < 10; i++) {
        for(int j = 1; j < 10; j++){
            cout << i << "x" << j << "=" << i*j << endl;
            
        }
    }
    return 0;
}

C++: //#define _GLIBCXX_DEBUG
#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <string>
#include <cstring>
#include <sstream>
#include <numeric>
#include <complex>

using namespace std;
typedef long long ll;
typedef pair<int,int> PI;

#define rep(i,n) for(int i=0;i<(int)(n);++i)
#define F first
#define S second
#define mp(a,b) make_pair(a,b)
#define pb(a) push_back(a)
#define SZ(a) (int)((a).size())
#define ALL(a) a.begin(),a.end()
#define FOR(it,a) for(__typeof(a.begin())it=a.begin();it!=a.end();++it)


//低優先度


#include <list>
#include <stack>
#include <iomanip>
#include <fstream>
#include <cassert>
#define REP(i, n) rep (i, n)
#define min3(a,b,c) min((a),min((b),(c)))
#define min4(a,b,c,d) min((a),min3((b),(c),(d)))
#define FLL(a,b) memset((a),b,sizeof(a))
#define CLR(a) memset((a),0,sizeof(a))
#define EPS (1e-8)
template<class T,class U>ostream&operator<<(ostream&o,pair<T,U>&v){return o<<"("<<v.F<<","<<v.S<<")";}
template<class T>ostream&operator<<(ostream&o,vector<T>&v){o<<"{";rep(i,SZ(v))o<<(i?",":"")<<v[i];return o<<"}";}
string i2s(int a){stringstream ss;ss<<a;return ss.str();};
typedef double FP;
typedef complex<FP> pt;
typedef pt P;
typedef pair<pt,pt> line;
FP dot(P a,P b){return real(conj(a)*b);}
FP crs(P a,P b){return imag(conj(a)*b);}
P ortho(P a){return a*P(0,1);}
P ortho(line a){return ortho(a.S-a.F);}
P crspt(P a,P b,P c,P d){b-=a,d-=c;return a+b*crs(d,c-a)/crs(d,b);}
P crspt(line a,line b){return crspt(a.F,a.S,b.F,b.S);}
bool onl(P a1,P a2,P b){return abs(b-a1)+abs(b-a2)<abs(a1-a2)+EPS;}
bool onl(line a,P b){return onl(a.F,a.S,b);}
bool iscrs(line a,line b){P c=crspt(a,b);return onl(a,c)&&onl(b,c);}
void pkuassert(bool t){t=1/t;};
int dx[]={0,1,0,-1,1,1,-1,-1};
int dy[]={1,0,-1,0,-1,1,1,-1};
enum{TOP,BTM,LFT,RGT,FRT,BCK};
int dxdy2ce[]={RGT,FRT,LFT,BCK};
template<class T> T shift(T a,int b,int c,int d,int e){
 __typeof(a[0])t=a[b];a[b]=a[c];a[c]=a[d];a[d]=a[e];a[e]=t;
 return a;}
template<class T> T rgt(T a){return shift(a,TOP,LFT,BTM,RGT);}
template<class T> T lft(T a){return shift(a,TOP,RGT,BTM,LFT);}
template<class T> T frt(T a){return shift(a,TOP,BCK,BTM,FRT);}
template<class T> T bck(T a){return shift(a,TOP,FRT,BTM,BCK);}
line mkl(P a,P v){return line(a,a+v);}
FP lpdist(line a,P b){return abs(b-crspt(a,mkl(b,ortho(a))));}
FP spdist(line a,P b){
  P c(crspt(a,mkl(b,ortho(a))));
  return onl(a,c)?abs(b-c):min(abs(a.F-b),abs(a.S-b));
}
FP ssdist(line a,line b){
 return
  iscrs(a,b)?0.:
   min4(spdist(a,b.F),spdist(a,b.S),
        spdist(b,a.F),spdist(b,a.S));
}
namespace std{
  bool operator<(const P&a,const P&b){
    return mp(real(a),imag(a))<mp(real(b),imag(b));
  }
}

int main(int argc, char *argv[])
{
  int a,b;
  ofstream fout("out.txt");
  rep(i,9)rep(j,9) printf("%dx%d=%d\n",i+1,j+1,(i+1)*(j+1));
  fout << a+b << endl;
  return 0;
}

C++: 
#include<iostream>

int main(){

	for(int i=1; i<10 ; i++){
		for(int j=1; j<10 ; j++){
			std::cout << i << "x" << j << "=" << i * j << '/n';
		}
	}

    return 0;
}