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练习

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#1 Created at ... [Delete] [Delete and Lock User] 
// 删除ul中与网页开发不相关的内容
var lis = d.querySelectorAll('ul#test-list li');
lis.forEach( li => {
    ['Swift', 'ANSI C', 'DirectX'].includes(li.innerText) && li.remove();
})
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