怎么輸出的結果是undefined?
var Nodediv=document.getElementsByTagName("div")[0].childNodes;
?for(var i=0;i<Nodediv.length;i++)
?{
? ? ?document.write(i.nodeName+"<br>");
?}
為啥是7個? undefined undefined undefined undefined undefined undefined undefined
var Nodediv=document.getElementsByTagName("div")[0].childNodes;
?for(var i=0;i<Nodediv.length;i++)
?{
? ? ?document.write(i.nodeName+"<br>");
?}
為啥是7個? undefined undefined undefined undefined undefined undefined undefined
2017-03-09
舉報
2017-03-10
加上索引就好了
2017-03-09
應該是 document.write(Nodediv[i].nodeName+"<br/>");?