Question

在没有eof的情况下将文件读入结构时遇到麻烦。我在.h文件中包含所有必需的包含，并且收到错误消息“IntelliSense：no operator”＆gt;＆gt;“匹配这些操作数”

struct Courses
{
    string mCourseID;
    double mCourseNumber;
    double mMaxCapacity;
    double mCurrentEnroled;
};

Courses addCourse(istream &File);


Courses addCourse(istream &File)
{
    Courses sData;

    File >> sData.mCourseID;
    File >> sData.mCourseNumber;
    File >> sData.mCurrentEnroled;
    File >> sData.mMaxCapacity;

    return sData;
 }

void readCourses(Courses sCourses[], ifstream &File, int &numCourses)
{
    while (addCourse(File) >> sCourses[numCourses])
    {

        numCourses++;
    }
}

Answer 1

我想，您想要将addCourse的签名更改为此...

istream& addCourse(istream &File, Courses& sData)
{
    File >> sData.mCourseID;
    File >> sData.mCourseNumber;
    File >> sData.mCurrentEnroled;
    File >> sData.mMaxCapacity;

    return File;
}

然后，使用这些修改修改您的其他功能......

void readCourses(Courses sCourses[], ifstream &File, int &numCourses)
{
    while (addCourse(File, sCourses[numCourses]))
    {
        numCourses++;
    }
 //......

但同样，您的数组sCourses是否足以容纳您输入的Courses个数量？或者你会停止条件？ ......重新考虑你的程序逻辑。

将文件读入结构数组

1 个答案: