Master Slide Layout
Adds or removes header, footer, date, and slide number placeholders to the layout of the master slide.
占位符
页眉
Adds a header placeholder to the master slide for notes.
日期/时间
Adds a date/time placeholder to the master slide.
页脚
Adds a footer placeholder to the master slide.
幻灯片编号
Adds a slide number placeholder to the master slide.