標識符「i」是不確定的C++

Question

#include<iostream> 
#include<string> 
#include<iomanip> 

using namespace std; 

struct EmployeeData 
{ 
    string employeeName; 
    float overtime; 
    float grossPay; 
    float hoursWorked; 
    float hourlyRate; 
    float statetaxOwed; 
    float statetaxRate; 
    float fedtaxOwed; 
    float fedtaxRate; 
    float netPay; 
}; 

EmployeeData employee[4]; //array of 4 employees 


int main() 
{ 
for (int i = 0; i < 4; ++i) 
    { 
    cout << "Please enter the Employee's Name: "; 
    cin >> employee[i].employeeName; 
    cout << "Please enter your hours worked: "; 
    cin >> employee[i].hoursWorked; 
    cout << "Please enter your hourly rate: "; 
    cin >> employee[i].hourlyRate; 
    cout << "Please enter the Federal Tax Rate: "; 
    cin >> employee[i].fedtaxRate; 
    cout << "Please enter the State Tax Rate: "; 
    cin >> employee[i].statetaxRate; 
    } 

for (int i = 0; i < 4; ++i) 
    { 
    calculate_stats(employee[i]); 
    } 

} 

void calculate_stats(EmployeeData& employee) 
{ 
    if (employee[i].hoursWorked>40) { 
     employee[i].hoursWorked = ((employee[i].hoursWorked-40) * (1.5)) + 40; 
    } 
    else { 
     employee[i].hoursWorked = employee[i].hoursWorked; 
    } 
    employee[i].grossPay = employee[i].hoursWorked * employee[i].hourlyRate; 
    employee[i].fedtaxOwed = employee[i].grossPay * (employee[i].fedtaxRate/100); 
    employee[i].statetaxOwed = employee[i].grossPay * (employee[i].statetaxRate/100); 
    employee[i].netPay = (employee[i].grossPay - employee[i].fedtaxOwed- employee[i].statetaxOwed); 

    cout << setprecision(2) << showpoint << fixed; 
    cout << "\nThe employee's name is: " << employee[i].employeeName << endl; 
    cout << "The Gross Pay is: $" << employee[i].grossPay << endl; 
    cout << "The Federal Taxes Owed is: $" << employee[i].fedtaxOwed << endl; 
    cout << "The State Taxes Owed is: $" << employee[i].statetaxOwed << endl; 
    cout << "The Net Pay for the Employee is: $" << employee[i].netPay << endl; 
} 

在線if employee[i].hoursWorked > 40)我收到的錯誤：「ERROR：標識符‘我’是未定義但是我確信在主定義它是適當的組織我的代碼，如果它的？不是，我應該怎麼組織它？我有一種感覺，這與我的代碼是如何組織的有關

Answer 1

我定義的是本地的，不能在其他函數中訪問，您可以更改這些代碼，如下所示

void calculate_stats(EmployeeData&); // put this line before main function. 

... 
for (int i = 0; i < 4; ++i) 
{ 
    calculate_stats(employee[i]); 
} 
... 


void calculate_stats(EmployeeData& employee) 
{ 
    if (employee.hoursWorked>40) { 
     employee.hoursWorked = ((employee.hoursWorked-40) * (1.5)) + 40; 
    } 
    else { 
     employee.hoursWorked = employee.hoursWorked; 
    } 
    ...