/** * 获取画笔选项对应的选中时的class名 * @param itemName */ export function getBrushSelectedName(itemName: number) { let className = ""; switch (itemName) { case 1: className = "brush-small-active"; break; case 2: className = "brush-medium-active"; break; case 3: className = "brush-big-active"; break; } return className; }