最新回答 / 慕村6055097
function checkall(){ var hobby = document.getElementsByTagName("input"); for(var i = 0; i < hobby.length; i++){ if(hobby[i].name == "hobby"){ hobby[i].checked = true; } } ...
已采纳回答 / 谁动了我的小甜饼
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Math </title><script type="text/javascript"> document.write(Math.ceil(3.3)+"</br>") document.write(Math....
2020-02-21