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还没用过控制台

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L0standfound

#1 Created at ... [Delete] [Delete and Lock User]

看了下面评论才了解 下次要学会自动动手控制台找原因. // 选择<p>JavaScript</p>: var js = document.getElementById('test-p');

// 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>: var arr = document.getElementsByClassName("c-red c-green")[0].children;

// 选择<p>Haskell</p>: var haskell = document.getElementsByClassName('c-green')[1].children[1];


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