<!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&quo
// 将js直接写在html中<button onclick="window.location.href='https://www.baidu.com'">点击跳转</button>//将js和html分开<button class="click_btn">点击跳转</button><script> var myBtn=document.getElementsByClassName('click_btn')[0]; m
