DEL#ITEM 刪除項(xiàng)目#Specify 指定Select item(s) to remove from layer.選取要從層中刪除的項(xiàng)目Remove#All 全部移除Remove all items from layer.從層中刪除全部項(xiàng)目Done/Return 完成/返回Complete delete operation and return.完成刪除操作并返回。