Question

我试图利用QTextStream来进行产出,以便停下来,但除非我具有特性,否则不会发生任何事情。我已尝试包括校正,但都没有工作。

Note: I tried removing all references to my stdin QTextStream and output worked fine.

    #include <QTextStream>

    QTextStream out(stdout);        
    out << "Please enter login username and password
";
    QTextStream in(stdin);
    out << "username:";
    QString username = in.readLine();
    out << "password:";
    QString password = in.readLine();

Answer 1

在你每次在流中推展东西之后,你必须人工冲动缓冲:

    QTextStream out(stdout);
    out << "Please enter login username and password
";
    out.flush();
    QTextStream in(stdin);
    out << "username:";
    out.flush();
    QString username = in.readLine();
    out << "password:";
    out.flush();
    QString password = in.readLine();

Alternatively, appending << endl also works.

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