// 选择<p>JavaScript</p>: var js = document.getElementById('test-p');
1. // 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>: var arr = document.getElementsByClassName('c-green')[0].getElementsByTagName('p');
// 选择<p>Haskell</p>: var haskell = document.getElementsByClassName('c-green')[1].getElementsByTagName('p')[1];
2、 // 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>: var arr = par.querySelectorAll('.c-red.c-green>p');
// 选择<p>Haskell</p>: var haskell = par.lastElementChild.lastElementChild;
Sign in to make a reply
桐Toono
// 选择<p>JavaScript</p>: var js = document.getElementById('test-p');
1. // 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>: var arr = document.getElementsByClassName('c-green')[0].getElementsByTagName('p');
// 选择<p>Haskell</p>: var haskell = document.getElementsByClassName('c-green')[1].getElementsByTagName('p')[1];
2、 // 选择<p>Python</p>,<p>Ruby</p>,<p>Swift</p>: var arr = par.querySelectorAll('.c-red.c-green>p');
// 选择<p>Haskell</p>: var haskell = par.lastElementChild.lastElementChild;