Qt : has initializer but incomplete type 中的 C++ 错误

Question

void FindWords::getTextFile() {
    QFile myFile(":/FindingWords2.txt");
    myFile.open(QIODevice::ReadOnly);

    QTextStream textStream(&myFile);
    QString line = textStream.readAll();
    myFile.close();

    ui->textEdit->setPlainText(line);
    QTextCursor textCursor = ui->textEdit->textCursor();
    textCursor.movePosition(QTextCursor::Start, QTextCursor::MoveAnchor, 1);
}

QTextStream textStream(&myFile) 一直给我错误，我无法修复它。

Answer 1

您忘记包含 <QTextStream>或 <QFile> .