将QList <int>写入文件

Question

所以这里有一小段代码用于将一些信息写入文件

void Receiver::fileWrite1(int dd, int mm, int yy, int h, int m, int s, QString commandID, QList<int> parameters)
{
    QString v = "Date - ";
    QString w = "Time - ";
    QString port = "Port = ";
    QString x = "Command = ";
    QString y = "Parameters = ";

    QFile file("E:/practica/data.txt");
    if(!file.open(QIODevice::Append)) {
        std::cerr << "Cannot open file for writing: "
                  << qPrintable(file.errorString()) << std::endl;

        return;
    }

    QTextStream out(&file);
    out << v << dd << "/" << mm << "/" << yy << "\r\n";
    out << w << h << " : " << m << " : " << s << "\r\n";
    out << port << c << "\r\n";
    out << x << commandID << "\r\n";
    out << y << << parameters << "\r\n";
    out << "\r\n";
}

问题是，＆＃34;参数＆＃34;是动态的，可以改变它的成员数量，QTextStream与QList不兼容

Answer 1

1. 您可以通过迭代QList<int>

以所需格式逐个添加参数的内容

2. 根据您希望参数内容为apppear的格式，请尝试这样的事情

   QTextStream out(&file);
   out << v << dd << "/" << mm << "/" << yy << "\r\n";
   out << w << h << " : " << m << " : " << s << "\r\n";
   out << port << c << "\r\n";
   out << x << commandID << "\r\n";
   out << y;
   //Iterate through your QList and write the contents
   for(int i=0;i<parameters.length();i++){
   out<< QString::number(parameters.value(i));
   out << "Parameter Seperator here";
   }
   
   out<< "\r\n";
   out << "\r\n";