qt 文件的写入与读出

ui->textBrowser->append(ss);

ui->textEdit->clear();

QFile file(str1);

if(!file.open(QIODevice::WriteOnly))

{

QMessageBox::warning(this,tr("Warning"),tr("file wrong"),QMessageBox::Yes);

}

QTextStream out(&file);

out<<ss;

file.close();

}

QFile file("qt2");

if(!file.open(QIODevice::ReadOnly))

{

QMessageBox::warning(this,tr("Warning"),tr("file wrong"),QMessageBox::Yes);

}

QTextStream in(&file);

while(!in.atEnd())

{

QString line=in.readAll();

ui->textBrowser->append("qt2");

ui->textBrowser->append(line);

}

file.close();