在任何人抨击我之前,我查阅了所有的论坛,试图解决这个问题,但不幸的是不能解决它。有人可以指出正确的方向来解决这个问题吗?当我输入值-1时,我想立即退出这个do while循环。例如,当我输入-1时,我希望输出如下:
请输入预计充电时间: // 用户输入-1 正在退出...
#include <iostream>
#include<iomanip>
using namespace std;
int main() {
float hour;
float Network1, Network2, Network3;
do {
cout << "Enter the expected number of hours charging:" << endl;
cin >> hour;
Network1= (1 * hour) + 10;
Network2= (2.50 * hour);
Network3 = (0.50 * hour) + 20;
cout << "Your expected costs are: " << endl;
cout << "Network 1: $" << fixed << setprecision(2) << Network1 << endl;
cout << "Network 2: $" << fixed << setprecision(2) << Network2 << endl;
cout << "Network 3: $" << fixed << setprecision(2) << Network3 << endl;
if(Network1 < Network2 && Network1 < Network3){
cout << "The lowest cost network is $" << Network1 << endl;
}
else if (Network2 < Network1 && Network2 < Network3){
cout << "The lowest cost network is $" << Network2 << endl;
}
else{
cout << "The lowest cost network is $" << Network3 << endl;
}
}
while (hour != -1) ;
cout << "Exiting..." << endl;
return 0;
}