{"action":"opened","issue":{"url":"https://api.github.com/repos/HPDell/MathematicalStatistics/issues/3","repository_url":"https://api.github.com/repos/HPDell/MathematicalStatistics","labels_url":"https://api.github.com/repos/HPDell/MathematicalStatistics/issues/3/labels{/name}","comments_url":"https://api.github.com/repos/HPDell/MathematicalStatistics/issues/3/comments","events_url":"https://api.github.com/repos/HPDell/MathematicalStatistics/issues/3/events","html_url":"https://github.com/HPDell/MathematicalStatistics/issues/3","id":386452622,"node_id":"MDU6SXNzdWUzODY0NTI2MjI=","number":3,"title":"表格行距增加","user":{"login":"HPDell","id":17842185,"node_id":"MDQ6VXNlcjE3ODQyMTg1","avatar_url":"https://avatars0.githubusercontent.com/u/17842185?v=4","gravatar_id":"","url":"https://api.github.com/users/HPDell","html_url":"https://github.com/HPDell","followers_url":"https://api.github.com/users/HPDell/followers","following_url":"https://api.github.com/users/HPDell/following{/other_user}","gists_url":"https://api.github.com/users/HPDell/gists{/gist_id}","starred_url":"https://api.github.com/users/HPDell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HPDell/subscriptions","organizations_url":"https://api.github.com/users/HPDell/orgs","repos_url":"https://api.github.com/users/HPDell/repos","events_url":"https://api.github.com/users/HPDell/events{/privacy}","received_events_url":"https://api.github.com/users/HPDell/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-12-01T12:08:17Z","updated_at":"2018-12-01T12:08:17Z","closed_at":null,"author_association":"OWNER","body":"行距\r\n\r\n```latex\r\n\\renewcommand\\arraystretch{1.5}\r\n```\r\n\r\n列宽，使用 `tabularx` 宏包的 `tabularx` 环境中提供的 `X` 列格式说明符，在通过下面语句定义 `Y` 的居中说明符\r\n\r\n```latex\r\n\\newcolumntype{Y}{>{\\centering\\arraybackslash}X}\r\n\\newcolumntype{Z}{>{\\raggedleft\\arraybackslash}X}\r\n```"}}
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