*交互就是标签处理类是否要读取标签体的内容和改变标签体返回的内容。
实例应用:创建页内广告标签
DOCTYPE taglib PUBLIC “-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN” “http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd”1.01.2pudp for Page Contenttypetruetruejava.lang.Stringresource type, value accept [media|image]srctruetruejava.lang.Stringresource src, used for resource foundingwidthtruetruejava.lang.Stringwidth size for resourceheighttruetruejava.lang.Stringheight size for resourcetitlefalsetruejava.lang.Stringtitle info show from mouse over on tag resourcelinktruetruejava.lang.Stringtarget link for mouse clicktargetfalsetruejava.lang.Stringresource open way, accept value [_blank,_self,_parent,_top], default value is _selft，以后我会去到很多很繁华或苍凉，
