C++ 如何在QT中使用DEBUG对齐日志文件中的数据？

我想在QT应用程序的日志文件中显示数据。为此，我使用

DEBUG（）

我显示的数据是：

Time since beginning of the test (ms) :  751  Pressure :  "0.051547" 
Time since beginning of the test (ms) :  2498  Pressure :  "0.116169" 
Time since beginning of the test (ms) :  8498  Pressure :  "0.253792" 
Time since beginning of the test (ms) :  10497  Pressure :  "0.290243" 
Time since beginning of the test (ms) :  12597  Pressure :  "0.316798"

但是我想把变量对齐，就像它们是列一样。 我想要这样的东西：

Time since beginning of the test (ms) :    751  Pressure :  "0.051547" 
Time since beginning of the test (ms) :   2498  Pressure :  "0.116169" 
Time since beginning of the test (ms) :   8498  Pressure :  "0.253792" 
Time since beginning of the test (ms) :  10497  Pressure :  "0.290243" 
Time since beginning of the test (ms) :  12597  Pressure :  "0.316798"

我使用的代码是：

for (int i = 0 ; i < _pressureValues.length() ; i++)
{
    DEBUG() << "Time since beginning of the test (ms) : " << _pressureValues[i].first
            << " Pressure : " << _pressureValues[i].second;
}

for（int i=0；i<_pressureValues.length（）；i++）
{
DEBUG（）您不能直接使用DEBUG（）执行此操作-您需要事先格式化输出字符串。
例如，具有
QString QString:：arg（双a，int fieldWidth=0，char format='g'，int precision=-1，QChar fillChar=QLatin1Char（“”））函数，该函数允许您格式化数字

for (int i = 0 ; i < _pressureValues.length() ; i++)
{
    const QString firstPressureValue = QString("%1").arg(_pressureValues[i].first, 5);
    DEBUG() << "Time since beginning of the test (ms) : " << firstPressureValue 
        << " Pressure : " << _pressureValues[i].second;
}

for（int i=0；i<_pressureValues.length（）；i++）
{
常量QString firstPressureValue=QString（“%1”）.arg（_pressureValues[i].first，5）；
DEBUG（）什么是
DEBUG（）
？是的，忘了说那句话。它与
qDebug（）
相同，但除了控制台之外，它还写在我的日志文件中
QString debugString = QString("Time since beginning of the test (ms) : %1 Pressure : %2");
QString firstPressureValue = QString("%1").arg(_pressureValues[i].first, 5);
DEBUG() << debugString.arg(firstPressureValue, QString::number(_pressureValues[i].second));