#include <iostream> //allow program to perform input and output
using namespace std; //引入using敘述式
int main()
{
cout<<"Hello"<<endl; //輸入Hello 換行
system("pause");
return 0;
}
--------------------------------------------------------------------------------------------------------------------
輸入半徑計(jì)算圓面積
#include <iostream>
using namespace std;
#include <math.h>
int main()
{
int r;
double area;
cout<<"輸入半徑"<<endl;
cin>>r;
area=M_PI*pow(r,2);
cout<<"面積"<<area<<endl;
system("pause");
return 0;
}
--------------------------------------------------------------------------------------------------------------------------
輸入華氏溫度
轉(zhuǎn)換攝氏溫度
#include <iostream>
using namespace std;
int main()
{
int fa;
double ce;
cout<<"華氏溫度:";
cin>>fa;
ce=((double)fa-32)*5/9;
cout<<"攝氏溫度:"<<ce<<endl;
system("pause");
return 0;
}
--------------------------------------------------------------------------------------------------------------------------
梯形面積
#include <iostream>
using namespace std;
int main()
{
int up,base,h;
double area;
cout<<"上底,下底,高:";
cin>>up,base,h;
are=(up+base)*h/2;
cout<<"面積"<<area<<endl;
system("pause");
return 0;
}
--------------------------------------------------------------------------------------------------------------------------
輸入本金，利率
計(jì)算本利和
#include <iostream>
using namespace std;
int main()
{
int p;
double r,sum;
cout<<"本金"<<endl;
cin>>p;
cout<<"利率"<<endl;
cin>>r;
sum=p*(1+r);
cout<<"本利和"<<sum<<endl;
system("pause");
return 0;
}
