v class="column"><h4 class="ui top attached block header">样例</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><h4>样例输入</h4><div class="ui existing segment"><pre style="margin-top:0; margin-bottom:0;"><code class="lang-plain">
			<div class=content><span class=sampledata><br />
6 9 2.5 9<br />
0.0 5.0 0.0 1<br />
0.0 0.0 -5.0 0<br />
0.0 -5.0 0.0 0<br />
0.0 0.0 5.0 0<br />
3.0 4.0 0.0 0<br />
4.0 3.0 0.0 1<br />
1 2 5<br />
2 3 