jstl的forEach使用和jstl变量实现自增
<c:forEach items="${reallyChooseSubjectList}" var="reallyChooseSubject"> <tr> <td width="20px;">(<%=i %>) </td><td>${reallyChooseSubject.name}</td> <td> <input type="hidden" name="subjectId<%=i %>" id="subjectId<%=i %>" value="${reallyChooseSubject.id }"> </td> </tr> <tr> <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="A" />A.${reallyChooseSubject.answer_A}</td><td></td> </tr> <tr> <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="B" />B.${reallyChooseSubject.answer_B}</td><td></td> </tr> <tr> <td width="20px;"><td> <c:if test="${reallyChooseSubject.answer_C != ''}" scope="page"> <input type="radio" name="answer<%=i %>"value="C" />C.${reallyChooseSubject.answer_C} </c:if> </td><td></td> </tr> <tr> <td width="20px;"><td> <c:if test="${reallyChooseSubject.answer_D != ''}" scope="page"> <input type="radio" name="answer<%=i %>"value="D" />D.${reallyChooseSubject.answer_D} </c:if> </td><td></td> </tr> <tr><%i++; %></tr> </c:forEach>在循环中变量自增:
<%@ page contentType="text/html;charset=gbk" %><%@taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %><html><head><title>x</title><meta http-equiv="Content-Type" content="text/html;charset=gbk"></head><body><c:set var="index" value="0" /><c:forEach var="x" begin="1" end="9" step="1"><c:set var="index" value="${index+1}" />index:${index}x:${x }<br></c:forEach><br></body></html>
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