请问怎样改变QGroupBox的边框线的粗细啊？

[sdkwjc]

如题？

[看山不是山看水不是水]

QSS

[CanDy_O]

setStyleSheet(
"QGroupBox"
"{"
" border: 3px solid;"
"}"
);

[sdkwjc]

[Quote=引用 2 楼 的回复:]
setStyleSheet(
"QGroupBox"
"{"
" border: 3px solid;"
"}"
);
[/Quote]


是这样用吗？怎么报错啊 说是不匹配啊？？？

QGroupBox *leftButtonGroup=new QGroupBox;
leftButtonGroup->setStyleSheet("leftButtonGroup","{"" border: 3px solid;""}");

[sdkwjc]

[刀刀亮]

QGroupBox *leftButtonGroup=new QGroupBox; 
leftButtonGroup->setStyleSheet(QObject::tr(" border: 3px solid;"));

[sdkwjc]

[Quote=引用 5 楼 的回复:]
C/C++ code


QGroupBox *leftButtonGroup=new QGroupBox;
leftButtonGroup->setStyleSheet(QObject::tr(" border: 3px solid;"));
[/Quote]

好使 thank you!!!!!!!!!