header line的用法和樣例：
例句
- The upper-left cell is the cell that is shared by the column header row and the row header column.
左上角的單元格是由列標題行和行標題列共享的單元格。 - You can change the order of the field names in the header row by dragging them to appropriate positions in the current view in the Contacts folder.
可以通過(guò)拖動(dòng)到聯(lián)系人文件夾中適當位置當前視圖中更改順序標題行中的字段名稱(chēng)。
