我正在努力改变文字的颜色，当它被点击但没有获得成功。
question有一个标签，四个options有四个标签，correct answer有一个标签，explanation有一个标签。
我正在尝试的是当用户点击任何option然后它应该与correct answer匹配并更改该选项的文本颜色，即当答案正确时，文字颜色应该转向绿色，否则颜色应变为红色。
但是当我点击任何option时，它只会变成红色。正确的option应该变为绿色，但它会变成红色。我无法弄清楚为什么？
看看我的代码。告诉我我犯错误的地方和解决方案。
.aspx： -
<%@ Page Title="" Language="C#" MasterPageFile="~/Student/StudentPage.master" AutoEventWireup="true" CodeFile="studpractice.aspx.cs" Inherits="Student_studpractice" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<script type="text/javascript">
$(function () {
$(".optionclass").click(function () {
var $thisoption = $(this);
var $corrans = $(".correctans");
if ($thisoption.text() == $corrans.text()) {
$thisoption.css("color", "green");
} else {
$thisoption.css("color", "red");
}
});
});
</script>
<div>
<div id="tabs">
<ul>
<li><a href="#tabs-1">Reasoning</a></li>
<li><a href="#tabs-2">Quantitative Aptitude</a></li>
<li><a href="#tabs-3">English</a></li>
<li><a href="#tabs-4">Mathematics</a></li>
<li><a href="#tabs-5">Computer Concepts</a></li>
</ul>
<div id="tabs-1">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" width="100%">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Panel ID="Panel1" runat="server">
<asp:Label ID="Label1" runat="server" Text='<%#Eval("Question") %>'></asp:Label>
<br />
<br />
<br />
<span>A-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label2" runat="server" Text='<%#Eval("Option1")%>' ></asp:Label></a>
<br />
<br />
<span>B-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label3" runat="server" Text='<%#Eval("Option2")%>'></asp:Label></a>
<br />
<br />
<span>C-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label4" runat="server" Text='<%#Eval("Option3")%>'></asp:Label></a>
<br />
<br />
<span>D-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label5" runat="server" Text='<%#Eval("Option4")%>'></asp:Label></a>
<br />
<br />
<asp:Button class="panelButton" runat="server" Text="Show Answer" ClientIDMode="Static" />
<br />
<asp:Panel ID="anspanel" class="AnswerPanel" runat="server" ClientIDMode="Static">
<span>Correct Answer is :-</span><asp:Label class="correctans" ID="Label6" runat="server" Text='<%#Eval("CorrectAns")%>'></asp:Label>
<br />
<br />
<asp:Label ID="Label7" runat="server" Text='<%#Eval("Explanation")%>'></asp:Label>
</asp:Panel>
</asp:Panel>
<br />
<br />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
<div id="tabs-2">
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="false" >
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Panel ID="Panel1" runat="server">
<asp:Label ID="Label1" runat="server" Text='<%#Eval("Question") %>'></asp:Label>
<br />
<br />
<br />
<span>A-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label2" runat="server" Text='<%#Eval("Option1")%>'></asp:Label></a>
<br />
<br />
<span>B-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label3" runat="server" Text='<%#Eval("Option2")%>'></asp:Label></a>
<br />
<br />
<span>C-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label4" runat="server" Text='<%#Eval("Option3")%>'></asp:Label></a>
<br />
<br />
<span>D-</span><a href="javascript:void(0);" style="text-decoration:none;"> <asp:Label class="optionclass" ID="Label5" runat="server" Text='<%#Eval("Option4")%>'></asp:Label></a>
<br />
<br />
<asp:Button class="panelButton" runat="server" Text="Show Answer" ClientIDMode="Static" />
<br />
<asp:Panel ID="anspanel" class="AnswerPanel" runat="server" ClientIDMode="Static">
<span>Correct Answer is :-</span><asp:Label class="correctans" ID="Label6" runat="server" Text='<%#Eval("CorrectAns")%>'></asp:Label>
<br />
<br />
<asp:Label ID="Label7" runat="server" Text='<%#Eval("Explanation")%>'></asp:Label>
</asp:Panel>
</asp:Panel>
<br />
<br />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
<div id="tabs-3">
Tab 3 Content
</div>
<div id="tabs-4">
Tab 4 Content
</div>
<div id="tabs-5">
Tab 5 Content
</div>
</div>
<input type="button" id="btnPrevious" value="Previous" style = "display:none"/>
<input type="button" id="btnNext" value="Next" />
</div>
</asp:Content>
答案 0 :(得分：2)
所以你做错了的是你选择了所有.correctans，你应该做的是选择仅针对该问题的.correctans。
答案 1 :(得分：0)
将$(".correctans")更改为$(".correctans")[0]或$(".correctans").first()以获取单个校正元素而不是集合。
编辑：
由于您在页面上有多个问题和答案，因此请使用此问题来获取他们正在回答的问题的正确答案：
var $corrans = $(this).parent().find('.correctans:first');