CSS Style Javascript

CSS Style Javascript

本文关键字：Javascript Style CSS      更新时间：2023-09-26

Im正在为网站提问，并希望var reltext中的正确/重试消息是不同的颜色，即绿色表示正确，红色表示错误，每个旁边可能都有一个小png。

有什么想法吗？

<form name = "Q1">
  <p>A local construction company has purchased 5 brand new diggers. Two of them have a telescopic jib. If a driver chooses a digger to use at random what is the probability it will have a telescopic jib?<br>
    0/5 
  <input name = "rad1" type = "radio" class="radio" onclick = "getAnswer('1a', '1')">
    1/5 
  <input name = "rad1" type = "radio" class="radio" onclick = "getAnswer('1b', '2')">
    2/5 
  <input name = "rad1" type = "radio" class="radio" onclick = "getAnswer('1c', '3')">
    3/5 
  <input name = "rad1" type = "radio" class="radio" onclick = "getAnswer('1d','4')">
  <br><br>
  </p>
<div id = "para"><div>
</form>
<script type = "text/javascript">
var reltext = [];
reltext[1] = "TRY AGAIN - 0/5 This would mean that there was no diggers with a telescopic jib." 
reltext[2] = "TRY AGAIN - 1/5 This would mean that there was only 1 digger with a telescopic jib"
reltext[3] = "CORRECT - 2/5 This would mean that there was 2 diggers with a telescopic jib" 
reltext[4] = "TRY AGAIN - 3/5 This would mean that there was 3 diggers with a telescopic jib."
function getAnswer(ans, rel) {
document.getElementById("para").innerHTML = reltext[rel];
if (ans == "1c") {alert ("Correct - Well done!")}
else {alert ("Incorrect - Try again")}
}
</script>

您可能不会使用JavaScript（或其他任何相关内容）对警报框的内容进行样式设置。

一个好的替代方案是使用像jQueryUI这样的框架，并使用模态对话框而不是JS警报。以下是jQuery UI对话框的链接：http://jqueryui.com/demos/dialog/

您可以通过多种方式来实现这一点
1。您可以将reltext替换为以下内容：

reltext[1] = "<div style='background-color:#dd0000;'>TRY AGAIN - 0/5 This would mean that there was no diggers with a telescopic jib.</div>"
reltext[2] = "<div style='background-color:#dd0000;'>TRY AGAIN - 1/5 This would mean that there was only 1 digger with a telescopic jib</div>"
reltext[3] = "<div style='background-color:#00dd00;'>CORRECT - 2/5 This would mean that there was 2 diggers with a telescopic jib</div>" 
reltext[4] = "<div style='background-color:#dd0000;'>TRY AGAIN - 3/5 This would mean that there was 3 diggers with a telescopic jib.</div>"

2.或者您可以用id="para"为div设置一个样式。类似于：

<style type="text/css">
.classWrong { bakcground-color: #dd0000; }
.classRight { background-color: #00dd00; }
</style>

然后在脚本部分更改函数以设置样式：

function getAnswer(ans, rel) {
    document.getElementById("para").innerHTML = reltext[rel];
    if (ans == "1c") {
        document.getElementById("para").className = "classRight";}
        alert ("Correct - Well done!");
    else {
        document.getElementById("para").className = "classWrong";}
        alert ("Incorrect - Try again")}
    }

3.至于向响应中添加图像，只需在reltext中添加img元素即可。可能类似于：

reltext[1] = "<div style='background-color:#dd0000;'>TRY AGAIN - 0/5 This would mean that there was no diggers with a telescopic jib.<img src='images/Wrong.png' /></div>"
reltext[3] = "<div style='background-color:#00dd00;'>CORRECT - 2/5 This would mean that there was 2 diggers with a telescopic jib<img src='images/Right.png' /></div>"

有很多其他方法可以做到这一点，但我想我会尝试一下。

在我看来，要解决这个问题，最简单的方法是制作两个div样式的

例如：

div.correct{ 
    background-color: green;
}
div.wrong{
    background-color: red;
}

使reltext成为多维数组，包含正确/错误的信息，例如：

reltext[1][0] = "correct"
reltext[1][1] = "CORRECT - That answer is correct"
reltext[2][0] = "wrong"
reltext[2][1] = "WRONG - This is wrong!"
reltext[3][0] = "wrong"
reltext[3][1] = "WRONG - BLaBlah.."

并修改如下功能：

function getAnswer(ans, rel) {
document.getElementById("para").innerHTML = reltext[rel][1];
document.getElementById("para").className = reltext[rel][0];
相关文章：