（C++）代码似乎运行在错误的循环...？

Question

我一直在玩我的学位，并在一段时间内我的学位，我已经嵌套了另一个do（）循环中的一些代码，但我遇到的问题是，代码不断，直到即使包裹的数量已满足，最后一辆面包车已满...

代码如下。如果有人可以看看它，并告诉我我做错了什么，那很棒。裸记住，我才真正被用C++编码约一个月所以我还有很多海拉学习..

#include <iostream> 
using namespace std; 

char cBeltFull; 
int iVanCount, iParcelCount, iParcelLoaded; 
float fHeaviestVanWeight, fParcelWeight, fCurrentPayload, fVanCapacity; 
char cExit = 'N'; 

int main() { 

    iVanCount = 1; 
    iParcelLoaded = 1; 
    fHeaviestWeight = 0; 
    fVanCapacity = 410; 


    do { 
     //Get the number of parcels to dispatch 
     cout << "How many parcels need sending?" << endl; 
     cin >> iParcelCount; 

     do { 
      fCurrentPayload = 0; 

      do { 

       //Get parcel weight 
       cout << endl << endl << endl << "What is the weight the parcel " << iParcelLoaded << "?"; 
       cin >> fParcelWeight; 

       //'Load' the parcel 
       cout << endl << endl << "Parcel loaded"; 
       iParcelLoaded ++; 

       //Update the payload 
       fCurrentPayload = fCurrentPayload + fParcelWeight; 

      } while ((fCurrentPayload + fParcelWeight)) < fVanCapacity) 

      //Dispatch the van 
      cout << endl << endl << "Van dispatched."; 

      //Update the van count 
      iVanCount ++; 

      if (fCurrentPayload > fHeaviestVanWeight) { 

       //Update the heaviest weight 
       fHeaviestVanWeight = fCurrentPayload; 

      } 

     } while (iParcelLoaded <= iParcelCount); 

     cout << endl << endl << endl << "Vans dispatched: " << iVanCout; 
     cout << endl << endl << "Weight of heaviest van: " << fHeaviestWeight; 

     cout << endl << endl << endl << "Exit? Y for YES or N for NO." << endl; 
     cin >> cExit; 

    } while (cExit == 'N'); 

} 

Answer 1

更改此

} while (((fCurrentPayload + fParcelWeight)) < fVanCapacity); 

这个

} while (((fCurrentPayload + fParcelWeight)) < fVanCapacity 
      && iParcelLoaded < iParcelCount); 

这样你将加载用户输入的项目数量。你的代码包含很多语法错误。

我纠正了它们，但请您在下次发布时更加小心。

#include <iostream> 
using namespace std; 

char cBeltFull; 
int iVanCount, iParcelCount, iParcelLoaded; 
float fHeaviestVanWeight, fParcelWeight, fCurrentPayload, fVanCapacity; 
char cExit = 'N'; 

int main() { 

    iVanCount = 1; 
    iParcelLoaded = 1; 
    fHeaviestVanWeight = 0; 
    fVanCapacity = 410; 


    do { 
     //Get the number of parcels to dispatch 
     cout << "How many parcels need sending?" << endl; 
     cin >> iParcelCount; 

     do { 
      fCurrentPayload = 0; 

      do { 

       //Get parcel weight 
       cout << endl << endl << endl << "What is the weight the parcel " << iParcelLoaded << "?"; 
       cin >> fParcelWeight; 

       //'Load' the parcel 
       cout << endl << endl << "Parcel loaded"; 
       iParcelLoaded ++; 

       //Update the payload 
       fCurrentPayload = fCurrentPayload + fParcelWeight; 

      } while (((fCurrentPayload + fParcelWeight)) < fVanCapacity && iParcelLoaded < iParcelCount); 

      //Dispatch the van 
      cout << endl << endl << "Van dispatched."; 

      //Update the van count 
      iVanCount ++; 

      if (fCurrentPayload > fHeaviestVanWeight) { 

       //Update the heaviest weight 
       fHeaviestVanWeight = fCurrentPayload; 

      } 

     } while (iParcelLoaded <= iParcelCount); 

     cout << endl << endl << endl << "Vans dispatched: " << iVanCount; 
     cout << endl << endl << "Weight of heaviest van: " << fHeaviestVanWeight; 

     cout << endl << endl << endl << "Exit? Y for YES or N for NO." << endl; 
     cin >> cExit; 

    } while (cExit == 'N'); 

}