QListWidget *widget = new QListWid->get();
QListWidgetItem *item1 = new QListWidgetItem("line1", widget);
item1->setFont(QFont("Arial", 20));
item1->serForeground(Qt::blue);
QListWidgetItem *item2 = new QListWidgetItem("line2", widget);
item1->setFont(QFont("Arial", 10)); // 设置字体
item1->serForeground(Qt::red); //设置颜色
widget->addItem(item1);
widget->addItem(item2);
这样就行了 !!你试试吧