原生js获取 id name tagName的封装

//函数式获取对象
function $(id) {
return document.getElementById(id);
}
function $$(name) {
return document.getElementsByName(name);
}
function $$$(tagName) {
return document.getElementsByTagName(tagName);
}

//对象式
Base = {

getId:function (id) {
return document.getElementById(id);
}
getName:function (name) {
return document.document.getElementsByName(name);
}
getTagName:function (tagName) {
return document.document.getElementsByTagName(tagName);
}
}