A.mid(2,s); B.charAt(2); C.s.indexOf(’’v’’); D.indexOf(s,’’v’’);
A.注冊監(jiān)聽者;注銷監(jiān)聽者 B.注冊事件源;注銷事件源 C.注冊自定義事件機制;注銷自定義事件機制 D.注冊bean;注銷bean
A.<%@ include file=”head.jsp”%> B.<% String url=”head.jsp”;%><%@ include file=”url”%> C.<%@ include file=”head.jsp”?name=”lovo”%> D.<%String companyName=”lovo”;%>%@include file”head.jsp”?name=‟companyName”%