c++ - 文件流问题

Question

在 2010 Visual C++ Express 中，我使用 ...

ifstream inFile("inputfile.dat");
double number;
while(inFile >> number)
{
cout << number << endl;
}

...将存储在文件中的8个数字读取到程序中，并在显示器上显示出来。它会根据需要正确显示它们，但我需要将每个单独的数字存储为已指定的 double 。从上到下，

1. 客户 1 的身份证明#
2. 余额
3. 未付款项
4. 已购买

那么其他 4 个数字对于不同的客户来说是一样的。我尝试了很多不同的方法来做到这一点，但每种方法都有:

"Run-Time Check Failure #3 - The variable 'variableName' is 
 being used without being initialized."

几乎所有的变量都会发生这种情况。我已经搜索了任何可以帮助我解决这个问题的东西，但似乎找不到可以帮助我达到我需要的程度的东西。

Answer 1

假设您真的想将这些存储在 8 个不同的变量中，而不是某种聚合数据类型中:

std::ifstream inFile("inputfile.dat");
double number;

    if(inFile >> cust1id >> cust1bal >> cust1pay >> cust1purch >> 
                 cust2id >> cust2bal >> cust2pay >> cust2purch) {
      std::cout << 
        "Customer 1's Identification #: " << cust1id << "\n" <<
        "Balance: " < cust1bal << "\n" <<
        "Payments outstanding: " << cust1pay << "\n" <<
        "Purchases that have been made: " << cust1purch << 
        "Customer 2's Identification #: " << cust2id << "\n" <<
        "Balance: " < cust2bal << "\n" <<
        "Payments outstanding: " << cust2pay << "\n" <<
        "Purchases that have been made: " << cust2purch << "\n"; 
     }