SPListItemCollection.Add 方法

Creates an item but requires the Update method to actually add the item to the list.

重载列表

	名称	说明
	Add()	Creates an item but requires the SPListItem.Update method to actually add the item to the list.
	Add(String, SPFileSystemObjectType)	Creates an item that uses the specified folder URL and object type but requires the SPListItem.Update method to actually add the item to the list.
	Add(String, SPFileSystemObjectType, String)	Creates an item that uses the specified folder URL, object type, and leaf name but requires the SPListItem.Update method to actually add the item to the list.