先把代码贴上吧
- C/C++ code
QWizardPage *createPage2(){ QWizardPage *page2 = new QWizardPage; page2->setTitle("page2"); QLabel *label2 = new QLabel("page2" "."); label2->setWordWrap(true);/////////////////////////////////////////////////////////////// QLabel *label21; QLineEdit *lineEdit21; label21 = new QLabel("UE Style(central;middle;edge):"); lineEdit21 = new QLineEdit; label21->setBuddy(lineEdit21); QHBoxLayout *layout21 = new QHBoxLayout; layout21->addWidget(label21); layout21->addWidget(lineEdit21); QLabel *label22; QLineEdit *lineEdit22; label22 = new QLabel("Number of BS:"); lineEdit22 = new QLineEdit; label22->setBuddy(lineEdit22); QHBoxLayout *layout22 = new QHBoxLayout; layout22->addWidget(label22); layout22->addWidget(lineEdit22); QLabel *label23; QLineEdit *lineEdit23; label23 = new QLabel("Number of UE:"); lineEdit23 = new QLineEdit; label23->setBuddy(lineEdit23); QHBoxLayout *layout23 = new QHBoxLayout; layout23->addWidget(label23); layout23->addWidget(lineEdit23); QLabel *label24; QLineEdit *lineEdit24; label24 = new QLabel("...:"); lineEdit24 = new QLineEdit; label24->setBuddy(lineEdit24); QHBoxLayout *layout24 = new QHBoxLayout; layout24->addWidget(label24); layout24->addWidget(lineEdit24); QLabel *label25; QLineEdit *lineEdit25; label25 = new QLabel("...:"); lineEdit25 = new QLineEdit; label25->setBuddy(lineEdit25); QHBoxLayout *layout25 = new QHBoxLayout; layout25->addWidget(label25); layout25->addWidget(lineEdit25);///////////////////////////////////////////////////////////////// QPushButton *OKButton = new QPushButton("OK"); QVBoxLayout *leftlayout = new QVBoxLayout; leftlayout->addLayout(layout21); leftlayout->addLayout(layout22); leftlayout->addLayout(layout23); leftlayout->addLayout(layout24); leftlayout->addLayout(layout25); QHBoxLayout *downlayout = new QHBoxLayout; downlayout->addLayout(leftlayout); downlayout->addWidget(OKButton); QVBoxLayout *layout2 = new QVBoxLayout; layout2->addWidget(label2); layout2->addLayout(downlayout); page2->setLayout(layout2); QObject::connect(OKButton, SIGNAL(clicked()), this, SLOT(save())); //////////错误在这~~ return page2;}void save(){ QFile file("F:/QtWorkshop/test_next/123.txt"); file.open(QIODevice::ReadWrite|QIODevice::Text); QTextStream in1(&file); in1 << lineEdit21->text() << endl; //////错误 QTextStream in2(&file); in2 << lineEdit22->text() << endl; //////错误 QTextStream in3(&file); in3 << lineEdit23->text() << endl; //////错误 QTextStream in4(&file); in4 << lineEdit24->text() << endl; //////错误 QTextStream in5(&file); in5 << lineEdit25->text() << endl; //////错误}错误提示是：
1、invalid of use of 'this' in non-member function
2、'lineEdit21' was not declared in this scope
这是怎么回事啊，我知道this指针肯定用的不对，但那个信号槽里面应该如何写啊？？
还有为什么会提示lineEdit21没有声明啊~？
我想完成的功能是：在页面2上添加几个lineEdit，然后点击OK按钮会把lineEdit中的内容保存到txt文档里，不知道我的save()函数写在那有没有问题啊？？
我把主函数也贴在下面吧，方便跑通
- C/C++ code
#include <QtGui/QApplication>#include "dialog.h"#include <qwizard.h>#include <QLabel>#include <QtGui>int main(int argc, char *argv[]){ QApplication app(argc, argv); QString translatorFileName = QLatin1String("qt_"); translatorFileName += QLocale::system().name(); QTranslator *translator = new QTranslator(&app); if (translator->load(translatorFileName, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) app.installTranslator(translator); QWizard wizard;// wizard.addPage(createIntroPage());// wizard.addPage(createPage1()); wizard.addPage(createPage2());// wizard.addPage(createPage3());// wizard.addPage(createPage4()); wizard.setWindowTitle("Trivial Wizard"); wizard.show(); return app.exec();}