提问人:matttm 提问时间:12/5/2013 更新时间:11/9/2023 访问量:853
重叠 cout [复制]
Overlapping cout [duplicate]
问:
出于某种原因,第二次迭代此循环时,cout 语句重叠。换句话说,在第一个 cout 之后,程序不会等待输入。我该如何解决这个问题?
此外,在现实生活中的税收中,nPay功能是否正常工作?有人告诉我,税收应该乘以毛额,每个单独,然后加起来。但是,我的方法也是一样的,特别是因为它们同时发生。
double calcGrossPay (double payRate, double hours);
double nPay (double& fedTx, double& localTx, double& stateTx, double& ssTx, double& netPay, double fPay);
void displayAll (double fPay, double netPay, string name);
double fedTx = 14, stateTx = 6, localTx = 3.5, ssTx = 4.75;
int main()
{
while (!cin.eof())
{
string name;
//cin.ignore();
cout <<"Please enter your working name: ";
getline (cin, name);
!cin.eof();
double payRate, hours;
cout <<"Enter your pay rate and hours worked, respectively."<< endl;
cin >> payRate >> hours;
!cin.eof();
double fPay = calcGrossPay (payRate, hours);
double netPay = 0;
netPay = nPay (fedTx, localTx, stateTx, ssTx, netPay, fPay);
displayAll (fPay, netPay, name);
system("pause");
}
}
double calcGrossPay (double payRate, double hours)
{
double extraT, fPay;
if (hours > 40)
{
extraT = (hours - 40) * (1.5 * payRate);
fPay = extraT + (40 * payRate);
}
else
fPay = payRate * hours;
return fPay;
}
double nPay (double& fedTx, double& localTx, double& stateTx, double& ssTx, double& netPay, double fPay)
{
double totalTx = fedTx + localTx + stateTx + ssTx;
netPay = fPay * (1 - (totalTx / 100));
return netPay;
}
void displayAll (double fPay, double netPay, string name)
{
cout <<"Below is "<< name << "'s salary information" << endl;
cout << fixed << showpoint << setprecision(2) <<"\nYour calculated gross pay is $"
<< fPay << ", and your net pay is $" << netPay << endl;
}
答:
2赞
David G
12/5/2013
#1
之后,流中仍有一条新行,因此您必须这样做:getline
ignore
getline(cin, name);
cin.ignore();
此外,在检查流之前执行提取,而不是 :while (!cin.eof())
while (getline(cin, name))
{
cin.ignore();
// ...
}
这是更新后的代码。我希望它对你有用:
int main()
{
for (std::string name; (cout << "Please enter your working name: ") &&
getline(cin >> std::ws, name);)
{
if (cin.eof())
break;
double payRate, hours;
cout << "\nEnter your pay rate and hours worked, respectively." << endl;
if (!(cin >> payRate >> hours))
break;
double fPay = calcGrossPay(payRate, hours);
double netPay = nPay(fedTx, localTx, stateTx, ssTx, netPay, fPay);
displayAll(fPay, netPay, name);
cin.get();
}
}
评论
0赞
matttm
12/5/2013
忽略工作,但我不明白 eof 去哪儿了。我以为它会在每个 cin 之后进行,因为当用户输入 ctrl-z 时,prog 会退出
0赞
David G
12/6/2013
@matttm 您不需要 .给我一个给程序输入的例子,我会告诉你该怎么做。!eof()
0赞
matttm
12/6/2013
代码 cout <<“请输入您的工作名称:”;getline (CIN, 名称);cin.ignore();cin.eof();法典当输入 ctrlZ 时,eof 就是这样,prog 结束。
0赞
David G
12/6/2013
@matttm 请检查更新并告诉我它是否适合您。
0赞
David G
12/6/2013
@matttm哎呀!我在原始代码中犯了一个错误。不过我刚才修好了。:D
-1赞
Riccardo Romeo
11/9/2023
#2
在 Windows 和 MacOs 中,在一行的末尾有一个回车符 (/r),当编译器读取 \r 时,它会将光标返回到行的开头,如果你想避免这种情况发生,你可以通过读取整个文件并将其设置为 null(\0) 来消除该字符每次遇到它。
上一个:重叠 cout [复制]
评论
而 (!eof())
是错误的。