再谈querySelector和querySelectorAll的区别与联系
先按W3C的规范来说这两个方法应该返回的内容吧: querySelector: return the first matching Element node within the node's subtrees. If there is no such node, the method must r
先按W3C的规范来说这两个方法应该返回的内容吧: querySelector: return the first matching Element node within the node's subtrees. If there is no such node, the method must r
显示当前域内所有计算机名称及数目 实现代码如下: Const ADS_SCOPE_SUBTREE = 2 Set objRootDSE = GetObject("LDAP://rootDSE") strDomain = ObjRootDSE.Get("defaultNamingContext") S
三级下拉菜单的实现: 实现代码如下: function list(idstr){ var name1="subtree"+idstr; var name2="img"+idstr; var objectobj=document.all(name1); var imgobj=document.all(