在此插入代码
// 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.querySelector("#test-div").lastElementChild.lastElementChild;
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jaychang87
// 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.querySelector("#test-div").lastElementChild.lastElementChild;