setStyleSheet("QProgressBar {border-radius: 5px;border: 1px solid grey;}"
"QProgressBar:chunk {min-height:15px;border-radius: 3px;background-color: green;background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5, stop: 0 red, stop: 1 white); }");
這是我寫的一個QProgressBar的漸變色的qss代碼,你可以參考下.