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()
{
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;
}