contenttype添加field
1 $splist.contenttypes["News"].fieldlinks.add($fieldlink)
contenttypes中添加field的方法。
下面这种则不起作用
1 $splist.contenttypes["News"].fields.add($spfield)
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spcontenttype.fields.aspx
http://hongzhguan.iteye.com/blog/1456881
新建一个spfieldlink对象用new-object
出处:http://cnblogs.com/daishuguang