how to set the color of row numer that is diffrent with table header?

[Harning]

how to set the color of row numer that is diffrent with table header?

[JonB]

@Harning
Hello and welcome.

Your question is unclear: what does "diffrent with table header" mean?

If you have a model, and you are using, say, a QTableView to display it, one way is to use QVariant QAbstractItemModel::data(const QModelIndex &index, int role = Qt::DisplayRole) const where for role == Qt::ForegroundRole or perhaps Qt::BackgroundRole you make it return the desired color. If the color varies by row number you can look at the passed in index.row() to determine which color to return.