我的「總計」輸出不會停留右對齊與其他輸出

-1

#include <iostream> 
#include <string> 
using namespace std; 

int main() { 
    double loan_Payment; 
    double insurance; 
    double gas; 
    double oil; 
    double tires; 
    double maintenance; 


    /// text setup 
    std::cout.width(30); std::cout << std::left << "Loan Payment"; 

    std::cout.width(15); std::cin >> std::right >> loan_Payment; 



    std::cout.width(30); std::cout << std::left << "Insurance"; 

    std::cout.width(15); std::cin >> std::right >> insurance; 



    std::cout.width(30); std::cout << std::left << "Gas"; 

    std::cout.width(15); std::cin >> std::right >> gas; 



    std::cout.width(30); std::cout << std::left << "Oil"; 

    std::cout.width(15); std::cin >> std::right >> oil; 



    std::cout.width(30); std::cout << std::left << "Tires"; 

    std::cout.width(15); std::cin >> std::right >> tires; 



    std::cout.width(30); std::cout << std::left << "Maintenance" ; 

    std::cout.width(15); std::cin >> std::right >> maintenance; 



    // adding total.yearly total, 10% 

    std::cout.width(30); std::cout << std::left << "Total"; 

    std::cout.width(15); std::cout << (loan_Payment + insurance + gas + oil + tires + maintenance) << right << endl; 

    std::cout.width(30); std::cout << std::left << "Yearly Total"; 

    std::cout.width(15); std::cout << (12 * (loan_Payment + insurance + gas + oil + tires + maintenance)) << right << endl; 

    std::cout.width(30); std::cout << std::left << "10%"; 

    std::cout.width(15); std::cout << (12 * (loan_Payment + insurance + gas + oil + tires + maintenance))*.10 << right << endl; 
    //if yearly total is greater than 1000 add 10 percent of the yearly total 
    double yearly_total; 
    yearly_total = (12 * (loan_Payment + insurance + gas + oil + tires + maintenance)); 
    if (yearly_total >= 1000) 

     std::cout.width(30); std::cout << "Grand Total" << left; 

    std::cout.width(60); std::cout << ((12 * (loan_Payment + insurance + gas + oil + tires + maintenance))*.10) + (12 * (loan_Payment + insurance + gas + oil + tires + maintenance)) << right << endl; 







}

寫C++程序，要求用戶輸入的每月費用從操作您的汽車發生的下列費用：貸款支付，保險，氣，油，輪胎和維護。然後，程序應顯示這些費用的每月總費用以及這些費用的預計年度總費用。我的「總計」輸出不會停留右對齊與其他輸出

標出每個成本。標籤應該左對齊，列寬爲30個字符。成本應正確對齊，並以小數點後兩位顯示，列寬爲15.

如果年總數大於1000美元，則將年總數的10％添加到年總數中。

來源

2017-03-21 Esmond Mccain

你想用'std :: cin >> std :: right >> loan_Payment來做什麼？''？ – NathanOliver

還有一些額外的'std :: cout.width（15）'，因爲在使用'std :: cout'之前再次改變了寬度，所以不會做任何事情。 – chris

問題左對齊然後cin輸入答案正確對齊。 –

最後一行

std::cout << ((12 * (loan_Payment + insurance + gas + oil + tires + maintenance))*.10) 
       + (12 * (loan_Payment + insurance + gas + oil + tires + maintenance)) 
     << right << endl;

具有輸出第一和right之後。當然，對齊將不會對已經顯示的內容產生任何影響。

來源

2017-03-21 16:04:00

感謝您的幫助。 –

我的「總計」輸出不會停留右對齊與其他輸出

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