单项选择题
A.document.createElement(span); B.document.createElement(’span’); C.document.createTextNode(’span’); D.document.createTextNode(span);
A.var fun = function(){};box.onlick= fun() B.var fun = function(){};box.addEventListener("click",fun,false); C.<button onclick="xxx()"></button> D.以上都正确
A.appendChild B.append C.replaceChild D.deleteChild