我感觉没有错误,为什么点击按钮不能按照要求显示和隐藏<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>显示及隐藏</title></head><body><script type="text/javascript">var Q=document.getElementById("q");Q.style.color="red";function x(){ Q.style.display="none";}function y(){ Q.style.display="block";}<h2 id="q">穷</h2></script><p>想住的好,为什么不买个别墅呢?</br>因为</p><form><input type="button" onclick="x()" value="tell me" /><input name="按钮" type="button" onclick="y()" value="not my bussiness" /></form></body></html>
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