设置当前演示文稿幻灯片背景
| 名称 | 类型 | 描述性 |
| OAPIFILLLL | apiFill | 颜色或模式填充幻灯片后台 |
builder.CreateFile("pptx")!varoPresentation=api.GetpresentationvaroSlide=api.Create滑动Var OGs1 = Api.CreateGradientStopVar OGS2 = Api.CreateGradient StopvaroFinll =api.CriateRadialGratientFilloSlide.SetBackground(oFill)!oPresentation.AddSlide(oSlide)!builder.SaveFile("pptx", "SetBackground.pptx")!builder.CloseFile();