问Greasemonkey不能使用jQuery的全部功能吗？

EN

var children = document.getElementById('app7019261521_hover_container').childNodes;
var ids = []; //to store the IDs of all matching elements
for(var i = 0; i < children.length; i++)
{
    //indexOf returns zero is subject starts with passed string
    if(children.item(i).id.indexOf('app7019261521_the_coin') == 0)
    {
        alert('Got One!');
        ids.push(children.item(i).id);
    }
}

var elements = document.querySelectorAll("#app7019261521_hover_container > [id^=app7019261521_the_coin]")