Qt的qss设计解决思路

Qt的qss设计
QCheckBox* checkBox;
   QLabel* titleWidget;这是我定义的两个对象，然后再qss文件里面这样写的



QCheckBox#checkBox:!checked{
                       border-image: url(:/file/123.jpg);
                       color: rgb(69,113,156);
                       text-align:center;
                       padding:1px  10px  3px   25px;
                       font-weight:bold;
                        font-size:18px;
                       border-color:black;
                       border-width:1px;
                       border-style:outset;
                       border-right:0px;
                       border-bottom:0px;}


QCheckBox#checkBox:checked{
                            background:#82A5C8;
                           color: rgb(69,113,156);
                           padding:1px  10px  3px   25px;
                           font-weight:bold;
                            font-size:18px;

                           border-color:black;
                           border-width:1px;
                           border-style:inset;
                           border-right:1px;
                           border-bottom:1px;
                          }

QCheckBox#checkBox::indicator{
 border-style:none;}
#titleWidget{
border:1px solid white; border-left:0px; border-right:0px; border-image: url(:/file/456.jpg); font-size:15px;
}为什么在主程序里面调用的时候界面不起变化 求高手解决  比较急
[解决办法]
那个不是指针名，是objectName
checkBox->setObjectName("checkBox");
titleWidget->setObjectName("titleWidget");