Javascript jQuery选择器缓存问题

问题是，当我每次编写HTML标记的ID时，下面的代码都能正常工作。但当我缓存它们时，它不会。我错过了什么

这是我的密码：

var NewFormContainer=$("#NewUserFormContainer"), opener=$("#nufcOpen"), closer=$("#nufcClose"), NewForm=$("#NewUserForm");
$(function() {
    $( "#userType" ).buttonset();
    $(".btn").button();

    closer.button({
        icons: {
            primary: "ui-icon-closethick"
        }, text: false
    }).click(function(){
        NewFormContainer.slideUp("slow");
    });
    opener.click(function(){
        NewFormContainer.slideDown("slow");
    });
});

---

顺便说一句，控制台中没有错误。我也在使用jqui

当

dom

就绪时，您需要

缓存它们

$(function() {
    $( "#userType" ).buttonset();
    $(".btn").button();

    var NewFormContainer=$("#NewUserFormContainer"),
        opener=$("#nufcOpen"),
        closer=$("#nufcClose"),
        NewForm=$("#NewUserForm");

    closer.button({
      icons: {
        primary: "ui-icon-closethick"
      }, text: false
    }).click(function(){
        NewFormContainer.slideUp("slow");
    });

    opener.click(function(){
        NewFormContainer.slideDown("slow");
    });
});

当缓存它们时，它们将在document.ready之前被规避。试试这个：

var NewFormContainer="#NewUserFormContainer", opener="#nufcOpen", closer="#nufcClose", NewForm="#NewUserForm";
$(function() {
  opener = $(opener);
  closer = $(closer);
  NewFormContainer = $(NewFormContainer);
  NewForm = $(NewForm);
  ...