<%@ taglib uri=”http://java.sun.com/jsp/jstl/functions” prefix=”fn”%>

${fn:substring(Mycar.car_num,1,fn:length(Mycar.car_num))}
<c:if test=”${fn:contains(policy.protocolInsuranceProduct,’商’) }”>

<c:when test=”${fn:startsWith(user.inviteOutCode,’A’)}”>
 

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原文链接：https://blog.csdn.net/hndelijun/article/details/68065183