{"action":"opened","issue":{"url":"https://api.github.com/repos/vuejs/vue/issues/1663","labels_url":"https://api.github.com/repos/vuejs/vue/issues/1663/labels{/name}","comments_url":"https://api.github.com/repos/vuejs/vue/issues/1663/comments","events_url":"https://api.github.com/repos/vuejs/vue/issues/1663/events","html_url":"https://github.com/vuejs/vue/issues/1663","id":114461653,"number":1663,"title":"可以提供对集合数据变化的$watch 吗？","user":{"login":"rendongsc","id":12553638,"avatar_url":"https://avatars.githubusercontent.com/u/12553638?v=3","gravatar_id":"","url":"https://api.github.com/users/rendongsc","html_url":"https://github.com/rendongsc","followers_url":"https://api.github.com/users/rendongsc/followers","following_url":"https://api.github.com/users/rendongsc/following{/other_user}","gists_url":"https://api.github.com/users/rendongsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rendongsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rendongsc/subscriptions","organizations_url":"https://api.github.com/users/rendongsc/orgs","repos_url":"https://api.github.com/users/rendongsc/repos","events_url":"https://api.github.com/users/rendongsc/events{/privacy}","received_events_url":"https://api.github.com/users/rendongsc/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-11-01T09:55:37Z","updated_at":"2015-11-01T09:55:37Z","closed_at":null,"body":"      目前提供的deep参数只是针对当个对象的多个属性，在实际的应用开发中会涉及到对多行数据的统一提交，这就需要对集合数据变化的监听，对于集合数据的监听，大致需要这几个参数：当前对象(model)、更改的属性名(name)、更改值(newValue)、更改前值(oldValue)。\r\n      如果用遍历方式来逐一绑定对象的watch，我换了好几种方法都不能成功！\r\n      谢谢！"}}