第5課 ── 基本的 if/else 條件流程控制

by max002215

HTML

<input type="text" placeholder="請輸入姓名" id="keyword">
<select  id="sex">
  <option value="men">男裝</option>
  <option value="women">女裝</option>
</select>
<select  id="type"><option value="coat">外套</option>
<option value="top">上衣</option>
<option value="trousers">下身</option></select>

<button class="show" onclick="myFunction()">線上下單 </button>
<button class="about" onclick="myFunction2()">認識工廠 </button>
<div class="swap">
<h2>我要訂購</h2>
<hr>
<ul class="useorder">
<li>您的訂單</li>
<li>顧客姓名:<span id="usename"></span></li>
<li>服裝分類:<span id="usesex"></span></li>
<li>服裝類型:<span id="usetype"></span></li>
</ul>
<hr>

</div>

CSS

.show, .about {
  padding: 10px;
  display: block;
  border: 0;
  background-color: #fa0;
  font-size: 24px;
  color: blue;
  font-weight: bold;
  border-radius: 10px;
  box-shadow: 5px 5px 5px #ccc;
  cursor: pointer;
}

button + button {
  margin-top: 20px;
}

.show:hover, .about:hover {
  transform: scale(1.2);
  color: white;
  background-color: #aaa;
}
.swap{
  background-color: gray;
}
.useorder{
  list-style-type: none;
   padding: 0px;
   margin: 0px;
}

JavaScript

function myFunction(){
var name = document.getElementById('keyword').value;
var mes = "您好！謝謝您對我們的衣服有興趣！請致電 0987-654-321，會有專人提供您報價！";
var use =document.getElementById('usename').textContent=name;
alert(name+mes);
let clothing=document.getElementById('sex');
let clothingIndex=clothing.selectedIndex;
/* alert(clothingIndex);
 */
let clothingValue=clothing.options[clothingIndex].text;
/* alert(clothingValue); */
let sexShow=document.getElementById('usesex').textContent=clothingValue;
let clothingtype = document.getElementById('type');
let clothingtypeIndex = clothingtype.selectedIndex;
/* alert(clothingtypeIndex); */
let clothingtypeValue = clothingtype.options[clothingtypeIndex].text;
/* alert(clothingtypeValue) */
let typeShow = document.getElementById("usetype").textContent=clothingtypeValue;
  if (clothingValue == '男裝') {
  alert('最近剛好是工廠週年慶，只要您今天來電下單，我們將贈送您帥氣領帶！');
} else {
  alert('最近剛好是工廠週年慶，只要您今天來電下單，我們將贈送您美麗圍巾！');
}

}
function myFunction2(){
var abot = "我們工廠位於新北市，通過國際 ISO9001 認證，品質讓您放心！";
alert(abot);
}