A.id B.href C.title D.x
var o = new Object; o.name = "David"; alert(o.name); delete o.name; 對這段腳本解釋正確的是()
A.創(chuàng)建一個對象 B.刪除了name屬性 C.將name強(qiáng)制設(shè)置為undefined D.再獲取name值會報(bào)錯