C++ 预期主表达式在 ';' 标记之前

Question

我收到一条错误消息，指出“expected primary-expression ';' token”，它突出显示了我的百分比公式。我试图重新排列我的代码，但似乎问题不在其中。

const int TOTALSUITES = 120;

for (int floor = 10; floor <= 16; floor++) {
    if ( floor != 13) {
        do { 
            cout << "Please enter the number of suites occupied on the floor " << floor << ":";
            cin >> numOccupied; 

            if ((numOccupied <0) || (numOccupied >20 )) {  
                goodChoice = false;
                cout << "\n\t\t**ERROR" << numOccupied << " ***\n\n";
                cout << "*** Choice must be from [0-20]***\n";
            }
            else {
                goodChoice = true;
            }
            totalOccupied += numOccupied; 
        } while (!goodChoice);
    }
 }

percentage = (totalOccupied / TOTALSUITES) * 100% ;
cout << endl;
cout << "Hotel has " << TOTALSUITES << endl;
cout << "Number of occupied suites is " << totalOccupied << endl;
cout << "The percentage of occupied suites is " << percentage << endl;
system("pause");
return 0;

Answer 1

% 这里使用的是模运算符，它是一个二元运算符...所以这就是你必须做的......

percentage = (totalOccupied / TOTALSUITES)* 100;

//然后在那个时候你有 cout percentage 的地方...做这个

cout<<"the percentage of occupied suites is"<<percentage<<"%";