问题:
Given:
11.<%
12.request.setAttribute("vals", new String[]{"1","2","3","4"});
13.request.setAttribute("index", "2");
14.%>
15.<%-- insert code here --%>
Which three EL expressions, inserted at line 15,are valid and evaluate to "3"?()
A . ${vals.2}
B . ${vals["2"]}
C . ${vals.index}
D . ${vals[index]}
E . ${vals}[index]
F . ${vals[vals[index-1]]}
Given:
11.<%
12.request.setAttribute("vals", new String[]{"1","2","3","4"});
13.request.setAttribute("index", "2");
14.%>
15.<%-- insert code here --%>
Which three EL expressions, inserted at line 15,are valid and evaluate to "3"?()
● 参考解析
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