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面積計算 (一) - 三角形

本帖最後由 tonyh 於 2018-7-11 15:18 編輯

  1. #include<iostream>
  2. #include<cstdlib>
  3. using namespace std;
  4. int main()    //主函式
  5. {
  6.     float a,b;   //int --> integer
  7.     cout<<"三角形的底(公分): ";
  8.     cin>>a;
  9.     cout<<"三角形的高(公分): ";
  10.     cin>>b;
  11.     cout<<"底"<<a<<"公分,高"<<b<<"公分的三角形,面積為"<<a*b/2<<"平方公分."<<endl;
  12.     system("pause");
  13.     return 0;   
  14. }
複製代碼

  1. #include<iostream>
  2. #include<cstdlib>
  3. using namespace std;
  4. int main()
  5. {
  6. float a,b;
  7.        cout<<"the base of the traingle(cm): ";  
  8.        cin>>a;
  9.        cout<<"the height of the traingle(cm): ";
  10.        cin>>b;
  11.        cout<<" the base is "<<a<<" and the height is "<<b<<" so the area is "<<a*b/2<<" centemiter square "<<endl;
  12.   system("pause");
  13.   return 0;   
  14. }
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  1. #include <iostream>
  2. #include <cstdlib>
  3. using namespace std;
  4. int main()
  5. {
  6.     float a,b;
  7.     cout<<"the area triangle's bottom (cm): ";
  8.     cin>>a;
  9.     cout<<"the area triangle's height (cm): ";
  10.     cin>>b;
  11.     cout<<"bottom"<<a<<"cm, height"<<b<<"cm of the triangle, the area is"<<a*b/2<<"sqaure."<<endl;
  12.     system("pause");
  13.     return 0;
  14. }
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