SPAppInstance.Install 方法
Starts an install on this app instance.
命名空间： Microsoft.SharePoint.Administration
程序集： Microsoft.SharePoint（位于 Microsoft.SharePoint.dll 中）
语法
声明
Public Function Install As Guid
用法
Dim instance As SPAppInstance
Dim returnValue As Guid
returnValue = instance.Install()
public Guid Install()
返回值
类型：System.Guid
The job identifier of the installation.
备注
This method can be used to restart an install if the install initially failed.