caml的时间比较

 

<Gt><FieldRef Name='Modified' /><Value Type='DateTime' IncludeTimeValue='TRUE'>" + last + "<value></Gt>

加  IncludeTimeValue='TRUE'

 

日期的格式必须写成”2008-8-6T10:00:00S“

 

对于动态的日期格式，要用SPUtility.CreateISO8601DateTimeFromSystemDateTime来转换

命名空间：Microsoft.SharePoint.Utilities

SPUtility.CreateISO8601DateTimeFromSystemDateTime()