Qt每天一例1.按行读取文件并打印

Posted 2022-01-06 鱼酱2333

需求：按行读取文件，并打印

#include <QCoreApplication>
#include <QFile>


void demo()

    QFile file;
    file.setFileName("c:/1.txt");
    if(file.open(QIODevice::ReadOnly | QIODevice::Text))
    
      QByteArray t ;
      while(!file.atEnd())
      
          qDebug()<<file.readLine();
      
      file.close();
    


int main(int argc, char *argv[])

    QCoreApplication a(argc, argv);
    demo();
    return a.exec();