#include <QtCore/QCoreApplication>#include <QFile>#include <QtDebug>int main(int argc, char *argv[]){ QCoreApplication a(argc, argv); QFile file("file.txt"); if(file.open(QIODevice::ReadOnly)) { char buffer[2048]; qint64 lineLen=file.readLine(buffer,sizeof(buffer)); if(lineLen!=-1) { qDebug()<<buffer; } } return a.exec();}有两个文件夹:D:\Downloads\TextFile和D:\Downloads\TextFile-build-desktop-Qt_4_8_0_for_Desktop_-_MinGW__Qt_SDK____
TextFile文件夹里面有TextFile.pro,main.cpp和TextFile.pro.user
TextFile-build-desktop-Qt_4_8_0_for_Desktop_-_MinGW__Qt_SDK____文件夹里有debug文件夹和release文件夹,还有Makefile,Makefile.debug,Makefile.release。
debug文件夹里有main.o,TextFile.exe,file.txt。
怕自己说的不明白,现将文件夹及其代码复制上去,希望各位大虾帮忙解决,感激不尽!!!