_:nb7a957a4289e473dab9bb3885a52f117xb1
<http://schema.org/text>
"<blockquote><p>pv&lt;-c(1,1,2,1,1,3,15,7,18)<br>\n i&lt;-1<br>\nwhile(i&lt;=length(pv)){</p>\n<ul><li>if(pv<i>&lt;=5){</i></li>\n<li>result<i>&lt;-\"初级用户\"</i></li>\n<li>}else if (pv<i>&lt;=15){</i></li>\n<li>result<i>&lt;-\"中级用户\"</i></li>\n<li>}else{</li>\n<li>result<i>&lt;-\"高级用户\"</i></li>\n<li>}</li>\n<li>i&lt;-i+1</li>\n<li>}<br>\n<em><strong>错误: 找不到对象'result'</strong></em><br>\n****</li></ul></blockquote>"
<https://d.cosx.org/d/422228->