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交作业

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灰_手

#1 Created at ... [Delete] [Delete and Lock User] 
// 选择<p>JavaScript</p>:
var js = document.querySelector("#test-p");

// 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>:
var arr = document.querySelectorAll(".c-red.c-green > p");

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