## 编译环境
操作系统
* [ ] Windows 7/8/10
* [ ] macOS
* [ ] Linux
`若需勾选，请把[ ]改成[x]`
Tex发行版
* [x ] TexLive `...
## 编译环境
操作系统
* [ ] Windows 7/8/10
* [ ] macOS
* [ ] Linux
`若需勾选，请把[ ]改成[x]`
Tex发行版
* [x ] TexLive `年份`
* [ ] MikTeX `版本号`
* [ ] CTeX
`若需勾选，请把[ ]改成[x]`
## 我的问题
\documentclass{article}
\begin{document}
{\begin{figure}[h]
\newsavebox{\set}
\savebox{\set}{\put(0,0){\circle*{3}}}
\begin{picture}(0,0)
\put(0,0){\usebox{\set}}
\end{picture}
\end{figure}
\let\set\undefined}
{\begin{figure}[h]
\newsavebox{\set}
\savebox{\set}{\put(0,0){\circle*{3}}}
\begin{picture}(0,0)
\put(0,0){\usebox{\set}}
\end{picture}
\end{figure}
\let\set\undefined}
\end{document}
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://wenda.latexstudio.net/data/attach/logo/logo.png', '推荐 亮 的问题《为什么第一figure环境外的花括号不能删去？》','https://wenda.latexstudio.net/answer/2346/3648.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
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