{"comment":{"url":"https://api.github.com/repos/croath/articles/comments/9907835","html_url":"https://github.com/croath/articles/commit/a4d28f8efa2cbf73512efb6f6ab3c9988d64a698#commitcomment-9907835","id":9907835,"user":{"login":"aprilnov","id":6947612,"avatar_url":"https://avatars.githubusercontent.com/u/6947612?v=3","gravatar_id":"","url":"https://api.github.com/users/aprilnov","html_url":"https://github.com/aprilnov","followers_url":"https://api.github.com/users/aprilnov/followers","following_url":"https://api.github.com/users/aprilnov/following{/other_user}","gists_url":"https://api.github.com/users/aprilnov/gists{/gist_id}","starred_url":"https://api.github.com/users/aprilnov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aprilnov/subscriptions","organizations_url":"https://api.github.com/users/aprilnov/orgs","repos_url":"https://api.github.com/users/aprilnov/repos","events_url":"https://api.github.com/users/aprilnov/events{/privacy}","received_events_url":"https://api.github.com/users/aprilnov/received_events","type":"User","site_admin":false},"position":48,"line":33,"path":"2014-12-15-nsundomanager.md","commit_id":"a4d28f8efa2cbf73512efb6f6ab3c9988d64a698","created_at":"2015-02-25T03:44:23Z","updated_at":"2015-02-25T03:44:23Z","body":"“调用可撤销操作的目标的 `NSUndoManger -registerUndoWithTarget:selector:object:` 方法就可以了” 这感觉怪怪的。。"}}