include

include

using namespace std;
int main(){
int i,j;
for(i=1;i<=9;i++)
{
for(j=1;j<i;j++)
cout<<j<<""<<i<<"="<<setw(2)<<ij<<" ";
cout<<endl;
}
}

解释：九九乘法表， 定义两个数字，使用内循环 for (j=I;j<=I;j++)

include

include

using namespace std;
int main(){
int i=10;
do
{
cout<<i<<"天"<<endl;
i–;
}while(i>=1);
}

成语接龙

include

include

using namespace std;
int main(){
string cy[4],str1;
cout<<"请输入四个字词语：";
cin>>cy[0];
for(int i=1;i<4;i++) {
cout<<"接上一个成语，再输入一个成语：";
cin>>cy[i];
}
cout<<"— 成语接龙完成 —-"<<endl;
for(int i=0;i<4;i++) str1+=cy[i];
cout<<str1<<endl;
return 0;
}