{"action":"closed","issue":{"url":"https://api.github.com/repos/PENGZhaoqing/CourseSelect/issues/27","repository_url":"https://api.github.com/repos/PENGZhaoqing/CourseSelect","labels_url":"https://api.github.com/repos/PENGZhaoqing/CourseSelect/issues/27/labels{/name}","comments_url":"https://api.github.com/repos/PENGZhaoqing/CourseSelect/issues/27/comments","events_url":"https://api.github.com/repos/PENGZhaoqing/CourseSelect/issues/27/events","html_url":"https://github.com/PENGZhaoqing/CourseSelect/issues/27","id":190998650,"number":27,"title":"form_for语法解释","user":{"login":"terrencestark","id":2180792,"avatar_url":"https://avatars.githubusercontent.com/u/2180792?v=3","gravatar_id":"","url":"https://api.github.com/users/terrencestark","html_url":"https://github.com/terrencestark","followers_url":"https://api.github.com/users/terrencestark/followers","following_url":"https://api.github.com/users/terrencestark/following{/other_user}","gists_url":"https://api.github.com/users/terrencestark/gists{/gist_id}","starred_url":"https://api.github.com/users/terrencestark/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/terrencestark/subscriptions","organizations_url":"https://api.github.com/users/terrencestark/orgs","repos_url":"https://api.github.com/users/terrencestark/repos","events_url":"https://api.github.com/users/terrencestark/events{/privacy}","received_events_url":"https://api.github.com/users/terrencestark/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-11-22T13:12:21Z","updated_at":"2016-11-22T13:49:35Z","closed_at":"2016-11-22T13:49:35Z","body":"form_for本身是个函数，形式为`form_for(record, options = {}, &block)` ，为什么能写为\r\n`form_for @article, url: {action: \"create\"}, html: {class: \"nifty_form\"} do |f|`，请问如何理解？\r\nform_for + 空格是怎样的语法，以及用逗号分隔的分别是三个参数吗？\r\nThanks!"}}
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