QProgressBar 样式

setStyleSheet(
                              "QProgressBar{border:1px solid #FFFFFF;"
                              "height:30;"
                              "background:grey;"
                              "text-align:right;"
                              "color:rgb(255,255,255);"
                              "border-radius:0px;}"

                              "QProgressBar::chunk{"
                              "border-radius:5px;"    // 斑马线圆角
                              "border:1px solid black;" // 黑边，默认无边
                              "background-color:white;"
                              "8px;margin:0.5px;}" // 宽度和间距
                              );