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  • jstl变量实现自增

    Java代码  收藏代码
    1. <c:forEach items="${reallyChooseSubjectList}" var="reallyChooseSubject">   
    2.           
    3.         <tr>  
    4.             <td width="20px;">(<%=i %>) </td><td>${reallyChooseSubject.name}</td>  
    5.             <td>  
    6.                 <input type="hidden" name="subjectId<%=i %>" id="subjectId<%=i %>" value="${reallyChooseSubject.id }">  
    7.           
    8.             </td>  
    9.         </tr>  
    10.         <tr>  
    11.             <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="A" />A.${reallyChooseSubject.answer_A}</td><td></td>  
    12.         </tr>  
    13.         <tr>  
    14.             <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="B" />B.${reallyChooseSubject.answer_B}</td><td></td>  
    15.         </tr>  
    16.         <tr>  
    17.             <td width="20px;"><td>  
    18.                 <c:if test="${reallyChooseSubject.answer_C != ''}" scope="page">  
    19.                     <input type="radio" name="answer<%=i %>"  value="C" />C.${reallyChooseSubject.answer_C}  
    20.                 </c:if>  
    21.             </td><td></td>  
    22.         </tr>  
    23.         <tr>  
    24.             <td width="20px;"><td>  
    25.                 <c:if test="${reallyChooseSubject.answer_D != ''}" scope="page">  
    26.                     <input type="radio" name="answer<%=i %>"  value="D" />D.${reallyChooseSubject.answer_D}  
    27.                 </c:if>  
    28.             </td><td></td>  
    29.         </tr>  
    30.         <tr><%i++; %></tr>  
    31.         </c:forEach>   



    在循环中变量自增: 

    Java代码  收藏代码
      1. <%@ page contentType="text/html;charset=gbk" %>  
      2. <%@taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %>  
      3. <html>  
      4. <head>  
      5. <title>x</title>  
      6. <meta http-equiv="Content-Type" content="text/html;charset=gbk">  
      7.   
      8. </head>  
      9. <body>  
      10. <c:set var="index" value="0" />  
      11. <c:forEach var="x" begin="1" end="9" step="1">  
      12. <c:set var="index" value="${index+1}" />  
      13. index:${index}  
      14. x:${x }  
      15. <br>  
      16.   
      17. </c:forEach>  
      18. <br>  
      19.   
      20. </body>  
      21. </html>  
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  • 原文地址:https://www.cnblogs.com/htys/p/3842915.html
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