<div style=" width: 400px;height: 500px; margin: 0 auto;"> <form action="select.jsp" method="post"> id:<input type="text" name="sid"> <input type="submit" value="查找"> </form> <form action="xiugai.jsp" method="post"> <form action="detele.jsp" method="post"> <table border="1"> <tr> <td>id</td> <td><input type="text" name="id" value="<%=request.getParameter("id")==null?"":request.getParameter("id")%>"/></td> </tr> <tr> <td>name</td> <td><input type="text" name="name" value="<%=request.getParameter("name")==null?"":request.getParameter("name")%>"/></td> </tr> <tr> <td>cid</td> <td><input type="text" name="cid" value="<%=request.getParameter("cid")==null?"":request.getParameter("cid")%>"/></td> </tr> <tr> <td>cname</td> <td><input type="text" name="cname" value="<%=request.getParameter("cname")==null?"":request.getParameter("cname")%>"/></td> </tr> <tr> <td colspan="1" align="left"><input type="submit" value="修改"></td> <td colspan="1" align="right"><input type="submit" value="删除"></td> </tr> </table> <a href ="updata.jsp">添加</a></br> </form> </form> </div>对该代码进行页面美化

可以使用 CSS 对该代码进行美化，例如：

<style>
    body {
        background-color: #f2f2f2;
    }
    
    form {
        margin: 20px;
    }
    
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }
    
    td {
        padding: 10px;
        text-align: center;
    }
    
    input[type="text"],
    input[type="submit"] {
        padding: 6px;
        border-radius: 4px;
        border: none;
        outline: none;
    }
    
    input[type="submit"] {
        background-color: #4CAF50;
        color: white;
        cursor: pointer;
        margin-right: 10px;
    }
    
    input[type="submit"]:hover {
        background-color: #3e8e41;
    }
    
    a {
        color: #4CAF50;
        text-decoration: none;
    }
    
    a:hover {
        text-decoration: underline;
    }
</style>

将上述 CSS 代码放在 HTML 页面的 head 标签内，即可美化页面。