但是使用下面的代码，我的自定义事件似乎没有发射。以下代码中的任何东西突出了为什么会是这样？我需要“初始化”视图中的任何东西吗？代码/结构上的任何其他指针也会很酷。下面是我的完整JS / HTML。

JS

var Todo = Backbone.Model.extend({});

var TodoCollection = Backbone.Collection.extend({

    model: Todo,url: '/Home/Todos'

});

var AppView = Backbone.View.extend({

    // where it should listen,required?
    el: $(".content"),events: {
        "keypress #new-todo": "enter"
    },initialize: function () {
        // _.bindAll(this,"render","createOnEnter");
        // this.collection.bind("all",this.render);
    },hi: function () {
        alert('ohai');
    },render: function () {
        var lis = '';
        $.each(this.collection.models,function () {
            lis += '<li>' + this.get('Text') + '</li>';
        });
        $('#todo-list').append(lis);
        return this.el;
    },enter: function (e) {
        alert('hi');
    }

});


var TodoController = Backbone.Controller.extend({

    routes: {
        "": "todos"
    },initialize: function (options) { },todos: function () {
        var todolist = new TodoCollection();
        todolist.fetch({
            success: function (data) {
                var appview = new AppView({ collection: data });
                appview.render();
            }
        });
    }

});

$(function () {
    window.app = new TodoController();
    Backbone.history.start();
});

HTML

<div id="todoapp">
    <div class="content">
        <input id="new-todo" placeholder="What needs to be done?" type="text" />
        <div id="todos">
            <ul id="todo-list">
            </ul>
        </div>
        <a href="#">say hey</a>
    </div>
</div>