_:nb7a957a4289e473dab9bb3885a52f117xb0
<http://schema.org/description>
"pv&lt;-c(1,1,2,1,1,3,15,7,18) i&lt;-1 while(i&lt;=length(pv)){ if(pv&lt;=5){ result&lt;-\"初级用户\" }else if (pv&lt;=15){ result&lt;-\"中级用户\" }else{ result&lt;-\"高级..."
<https://d.cosx.org/d/422228->