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console 命令行工具 X clear

                    
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console
<strong>下面中国十大冰淇淋你吃过几个?</strong>
<ol>
    <li><input type="checkbox" id="icecream1"><label for="icecream1">哈根达斯</label></li>
    <li><input type="checkbox" id="icecream2"><label for="icecream2">和路雪wall's</label></li>
    <li><input type="checkbox" id="icecream3"><label for="icecream3">八喜冰淇淋</label></li>
    <li><input type="checkbox" id="icecream4"><label for="icecream4">DQ冰淇淋</label></li>
    <li><input type="checkbox" id="icecream5"><label for="icecream5">蒙牛冰淇淋</label></li>
    <li><input type="checkbox" id="icecream6"><label for="icecream6">雀巢冰淇淋</label></li>
    <li><input type="checkbox" id="icecream7"><label for="icecream7">伊利冰淇淋</label></li>    
    <li><input type="checkbox" id="icecream8"><label for="icecream8">乐可可冰淇淋</label></li>
    <li><input type="checkbox" id="icecream9"><label for="icecream9">新城市冰淇淋</label></li>
    <li><input type="checkbox" id="icecream10"><label for="icecream10">明治MEIJI</label></li>
</ol>
你总共选择了 <strong class="total"></strong> 款冰淇淋

<hr />
<a href="https://www.cnblogs.com/deepblue775737449/p/9163239.html">https://www.cnblogs.com/deepblue775737449/p/9163239.html</a>
body {
  counter-reset: icecream;
}
input:checked {
  counter-increment: icecream;
}
.total::after {
  content: counter(icecream);
}