int main() { BMI bmi; float height,weight,output; string category; ifstream inFile("file.in",ios::in); if(!inFile) { cerr << "Failed opening " << endl; exit(1); } ofstream outFile("file.out",ios::out); if(!outFile){ cerr << "Failed opening " << endl; exit(1); } while(inFile>>height>>weight){ if(height !=0){ bmi.setHeight(height); bmi.setWeight(weight); output = bmi.getBMI(); category = bmi.getCategory(); outFile<<fixed<<setprecision(2)<<output<<"\t" <<category<< endl; } else break; } return 0; }
int main() { ifstream inFile("file.in", ios::in); ofstream outFile("file.out", ios::out); if(!inFile) { cerr<<"Failed opening"<<endl; exit(1); } double h, m; BMI bmi; while(inFile>>h>>m) { if(h==0 && m==0) continue; bmi.setHeight(h); bmi.getHeight(); bmi.setMass(m); bmi.getMass(); bmi.calBMI(h, m); outFile<<setprecision(4)<<bmi.getBMI()<<"\t"<<bmi.Category()<<endl; } return 0; }
int main() { float temp_height = 0, temp_mass = 0; BMI bmi; //判定file.in及file.out能否開啟 ifstream inFile("file.in",ios::in); if(!inFile) { cout << "file.in open failure." << endl; return 0; } ofstream outFile("file.out",ios::out); if (!outFile) { cout << "file.out open failure." << endl; return 0; } //從file.in存取資料使用bmi來得到結果並輸出至file.out, 直到讀到的值為0 while(1) { inFile >> temp_height >> temp_mass; if (temp_height == 0 && temp_mass == 0) break; bmi.setHeight(temp_height); bmi.setMass(temp_mass); outFile << setprecision(4) << setw(5) << setiosflags(ios::left) << bmi.getBMI(); outFile << " " << bmi.getCategory() << endl; } return 0; }