这样写

#include<iostream>
using namespace std;

int main(){
for(int i=1;i<=9;i++){
cout<<" ";
for(int j=1;j<=i;j++){
cout<<j<<" * "<<i<<"=";
if(i*j<10){
cout<<" ";
}
cout<<i*j<<" ";
}
cout<<endl;
}
return 0;
}