QLineEdit設置icon

 

QLineEdit {
    background: #f3f3f3;
    background-image: url(:Images/search.svg); /* actual size, e.g. 16x16 */
    background-repeat: no-repeat;
    background-position: left;
    color: #252424;
    font-family: SegoeUI;
    font-size: 12px;
    padding: 2 2 2 20; /* left padding (last number) must be more than the icon's width */
    border: 1px solid #dddddd;
}
ps:注意要設置border: 1px solid #dddddd;不然會出現背景圖標閃爍(應該是qt的bug,也許高版本已經修復)