这个错误怎么解决。哪位高手帮帮解决？？？

[weixin_38088241]

#include<QtGui>#include"sortdialog.h"SortDialog::SortDialog(QWidget *parent)   :QDialog(parent){   setupUi(this);     secondaryGroupBox->hide();   tertiaryGroupBox->hide();   layout()->setSizeConstraint(QLayout::SetFixedSize);     setColumnRange('A', 'Z');}void SortDialog::setColumnRange(QChar first, QChar last){      primaryColumnCombo->clear();      secondaryColumnCombo->clear();      tertiaryColumnCombo->clear();      secondaryColumnCombo->addItems(tr("None"));      tertiaryColumnCombo->addItem(tr("None"));      primaryColumnCombo->setMinimumSize(secondaryColumnCombo->sizeHint());     QChar ch = first;   while (ch<=last)   {      primaryColumnCombo->addItem(QString(ch));      secondaryColumnCombo->addItem(QString(ch));      tertiaryColumnCombo->addItem(QString(ch));      ch = ch.unicode() + 1;   }}      main.cpp#include<QApplication>#include"sortdialog.h"int main (int argc, char *argv[]){   QApplication app(argc,argv);   SortDialog *dialog = new SortDialog;   dialog->setColumnRange('C', 'F');   dialog->show();   return app.exec();}sortdialog.h#ifndef SORTDIALOG_H#define SORTDIALOG_H#include<QDialog>#include"ui_sortdialog.h"class SortDialog : public QDialog, public Ui::SortDialog{     Q_OBJECTpublic:     SortDialog(QWidget *parent = 0);     void setColumnRange(QChar first ,QChar last);};#endifui_sortdialog.h/********************************************************************************** Form generated from reading UI file 'sortdialog.ui'**** Created: Wed Aug 3 16:32:24 2011**      by: Qt User Interface Compiler version 4.7.1**** WARNING! All changes made in this file will be lost when recompiling UI file!********************************************************************************/#ifndef UI_SORTDIALOG_H#define UI_SORTDIALOG_H#include <QtCore/QVariant>#include <QtGui/QAction>#include <QtGui/QApplication>#include <QtGui/QButtonGroup>#include <QtGui/QComboBox>#include <QtGui/QDialog>#include <QtGui/QGroupBox>#include <QtGui/QHeaderView>#include <QtGui/QLabel>#include <QtGui/QPushButton>#include <QtGui/QSpacerItem>#include <QtGui/QVBoxLayout>#include <QtGui/QWidget>class Ui_SortDialog{public:    QGroupBox *primaryGroupBox;    QLabel *primaryColumnCombo;    QComboBox *primaryColumnCombo_2;    QLabel *orderButton;    QComboBox *primaryOrderCombo;    QGroupBox *secondaryGroupBox;    QLabel *secondaryColumnCombo;    QComboBox *secondaryColumnCombo_2;    QLabel *orderButton_2;    QComboBox *secondaryOrderCombo;    QGroupBox *tertiaryGroupBox;    QLabel *tertiaryColumnCombo;    QComboBox *tertimaryColumnCombo;    QLabel *orderButton_3;    QComboBox *tertimaryColumnCombo_2;    QWidget *layoutWidget;    QVBoxLayout *verticalLayout;    QPushButton *okButton;    QPushButton *CancelButton;    QSpacerItem *verticalSpacer;    QPushButton *MoreButton;    void setupUi(QDialog *SortDialog)    {        if (SortDialog->objectName().isEmpty())            SortDialog->setObjectName(QString::fromUtf8("SortDialog"));        SortDialog->resize(375, 438);        primaryGroupBox = new QGroupBox(SortDialog);        primaryGroupBox->setObjectName(QString::fromUtf8("primaryGroupBox"));        primaryGroupBox->setGeometry(QRect(30, 30, 201, 111));        primaryColumnCombo = new QLabel(primaryGroupBox);        primaryColumnCombo->setObjectName(QString::fromUtf8("primaryColumnCombo"));        primaryColumnCombo->setGeometry(QRect(10, 30, 51, 16));        primaryColumnCombo_2 = new QComboBox(primaryGroupBox);        primaryColumnCombo_2->setObjectName(QString::fromUtf8("primaryColumnCombo_2"));        primaryColumnCombo_2->setGeometry(QRect(70, 32, 61, 21));        orderButton = new QLabel(primaryGroupBox);        orderButton->setObjectName(QString::fromUtf8("orderButton"));        orderButton->setGeometry(QRect(10, 70, 41, 16));        primaryOrderCombo = new QComboBox(primaryGroupBox);        primaryOrderCombo->setObjectName(QString::fromUtf8("primaryOrderCombo"));        primaryOrderCombo->setGeometry(QRect(70, 70, 91, 21));        secondaryGroupBox = new QGroupBox(SortDialog);        secondaryGroupBox->setObjectName(QString::fromUtf8("secondaryGroupBox"));        secondaryGroupBox->setGeometry(QRect(30, 180, 201, 111));        secondaryColumnCombo = new QLabel(secondaryGroupBox);        secondaryColumnCombo->setObjectName(QString::fromUtf8("secondaryColumnCombo"));        secondaryColumnCombo->setGeometry(QRect(10, 30, 51, 16));        secondaryColumnCombo_2 = new QComboBox(secondaryGroupBox);        secondaryColumnCombo_2->setObjectName(QString::fromUtf8("secondaryColumnCombo_2"));        secondaryColumnCombo_2->setGeometry(QRect(70, 32, 61, 21));        orderButton_2 = new QLabel(secondaryGroupBox);        orderButton_2->setObjectName(QString::fromUtf8("orderButton_2"));        orderButton_2->setGeometry(QRect(10, 70, 41, 16));        secondaryOrderCombo = new QComboBox(secondaryGroupBox);        secondaryOrderCombo->setObjectName(QString::fromUtf8("secondaryOrderCombo"));        secondaryOrderCombo->setGeometry(QRect(70, 70, 91, 21));        tertiaryGroupBox = new QGroupBox(SortDialog);        tertiaryGroupBox->setObjectName(QString::fromUtf8("tertiaryGroupBox"));        tertiaryGroupBox->setGeometry(QRect(30, 310, 201, 111));        tertiaryColumnCombo = new QLabel(tertiaryGroupBox);        tertiaryColumnCombo->setObjectName(QString::fromUtf8("tertiaryColumnCombo"));        tertiaryColumnCombo->setGeometry(QRect(10, 30, 51, 16));        tertimaryColumnCombo = new QComboBox(tertiaryGroupBox);        tertimaryColumnCombo->setObjectName(QString::fromUtf8("tertimaryColumnCombo"));        tertimaryColumnCombo->setGeometry(QRect(70, 32, 61, 21));        orderButton_3 = new QLabel(tertiaryGroupBox);        orderButton_3->setObjectName(QString::fromUtf8("orderButton_3"));        orderButton_3->setGeometry(QRect(10, 70, 41, 16));        tertimaryColumnCombo_2 = new QComboBox(tertiaryGroupBox);        tertimaryColumnCombo_2->setObjectName(QString::fromUtf8("tertimaryColumnCombo_2"));        tertimaryColumnCombo_2->setGeometry(QRect(70, 70, 91, 21));        layoutWidget = new QWidget(SortDialog);        layoutWidget->setObjectName(QString::fromUtf8("layoutWidget"));        layoutWidget->setGeometry(QRect(290, 31, 77, 132));        verticalLayout = new QVBoxLayout(layoutWidget);        verticalLayout->setObjectName(QString::fromUtf8("verticalLayout"));        verticalLayout->setContentsMargins(0, 0, 0, 0);        okButton = new QPushButton(layoutWidget);        okButton->setObjectName(QString::fromUtf8("okButton"));        okButton->setEnabled(true);        okButton->setDefault(true);        verticalLayout->addWidget(okButton);        CancelButton = new QPushButton(layoutWidget);        CancelButton->setObjectName(QString::fromUtf8("CancelButton"));        verticalLayout->addWidget(CancelButton);        verticalSpacer = new QSpacerItem(18, 28, QSizePolicy::Minimum, QSizePolicy::Expanding);        verticalLayout->addItem(verticalSpacer);        MoreButton = new QPushButton(layoutWidget);        MoreButton->setObjectName(QString::fromUtf8("MoreButton"));        verticalLayout->addWidget(MoreButton);        QWidget::setTabOrder(primaryColumnCombo_2, primaryOrderCombo);        QWidget::setTabOrder(primaryOrderCombo, MoreButton);        QWidget::setTabOrder(MoreButton, okButton);        QWidget::setTabOrder(okButton, secondaryColumnCombo_2);        QWidget::setTabOrder(secondaryColumnCombo_2, secondaryOrderCombo);        QWidget::setTabOrder(secondaryOrderCombo, tertimaryColumnCombo);        QWidget::setTabOrder(tertimaryColumnCombo, tertimaryColumnCombo_2);        retranslateUi(SortDialog);        QObject::connect(okButton, SIGNAL(clicked()), SortDialog, SLOT(accept()));        QObject::connect(CancelButton, SIGNAL(clicked()), SortDialog, SLOT(reject()));        QObject::connect(MoreButton, SIGNAL(toggled(bool)), secondaryGroupBox, SLOT(setVisible(bool)));        QObject::connect(MoreButton, SIGNAL(toggled(bool)), tertiaryGroupBox, SLOT(setVisible(bool)));        QMetaObject::connectSlotsByName(SortDialog);    } // setupUi    void retranslateUi(QDialog *SortDialog)    {        SortDialog->setWindowTitle(QApplication::translate("SortDialog", "Sort", 0, QApplication::UnicodeUTF8));        SortDialog->setProperty("Sort", QVariant(QString()));        primaryGroupBox->setTitle(QApplication::translate("SortDialog", "&primary Key", 0, QApplication::UnicodeUTF8));        primaryColumnCombo->setText(QApplication::translate("SortDialog", "Column:", 0, QApplication::UnicodeUTF8));        primaryColumnCombo_2->clear();        primaryColumnCombo_2->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "None", 0, QApplication::UnicodeUTF8)        );        orderButton->setText(QApplication::translate("SortDialog", "Order:", 0, QApplication::UnicodeUTF8));        primaryOrderCombo->clear();        primaryOrderCombo->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "Ascending", 0, QApplication::UnicodeUTF8)         << QApplication::translate("SortDialog", "Descending", 0, QApplication::UnicodeUTF8)        );        secondaryGroupBox->setTitle(QApplication::translate("SortDialog", "&Secondary Key", 0, QApplication::UnicodeUTF8));        secondaryColumnCombo->setText(QApplication::translate("SortDialog", "Column:", 0, QApplication::UnicodeUTF8));        secondaryColumnCombo_2->clear();        secondaryColumnCombo_2->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "None", 0, QApplication::UnicodeUTF8)        );        orderButton_2->setText(QApplication::translate("SortDialog", "Order:", 0, QApplication::UnicodeUTF8));        secondaryOrderCombo->clear();        secondaryOrderCombo->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "Ascending", 0, QApplication::UnicodeUTF8)         << QApplication::translate("SortDialog", "Descending", 0, QApplication::UnicodeUTF8)        );        tertiaryGroupBox->setTitle(QApplication::translate("SortDialog", "&Tertiary Key", 0, QApplication::UnicodeUTF8));        tertiaryColumnCombo->setText(QApplication::translate("SortDialog", "Column:", 0, QApplication::UnicodeUTF8));        tertimaryColumnCombo->clear();        tertimaryColumnCombo->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "None", 0, QApplication::UnicodeUTF8)        );        orderButton_3->setText(QApplication::translate("SortDialog", "Order:", 0, QApplication::UnicodeUTF8));        tertimaryColumnCombo_2->clear();        tertimaryColumnCombo_2->insertItems(0, QStringList()         << QApplication::translate("SortDialog", "Ascending", 0, QApplication::UnicodeUTF8)         << QApplication::translate("SortDialog", "Descending", 0, QApplication::UnicodeUTF8)        );        okButton->setText(QApplication::translate("SortDialog", "OK", 0, QApplication::UnicodeUTF8));        CancelButton->setText(QApplication::translate("SortDialog", "Cancel", 0, QApplication::UnicodeUTF8));        MoreButton->setText(QApplication::translate("SortDialog", "&More", 0, QApplication::UnicodeUTF8));    } // retranslateUi};namespace Ui {    class SortDialog: public Ui_SortDialog {};} // namespace UiQT_END_NAMESPACE#endif // UI_SORTDIALOG_H出现如下的错误：sortdialog.cpp: In member function ‘void SortDialog::setColumnRange(QChar, QChar)’:sortdialog.cpp:23:29: error: ‘class QLabel’ has no member named ‘addItems’sortdialog.cpp:24:28: error: ‘class QLabel’ has no member named ‘addItem’sortdialog.cpp:30:27: error: ‘class QLabel’ has no member named ‘addItem’sortdialog.cpp:31:29: error: ‘class QLabel’ has no member named ‘addItem’sortdialog.cpp:32:28: error: ‘class QLabel’ has no member named ‘addItem’make: *** [sortdialog.o] 错误 1