case person.name
  when 'qzone'
    div qzone
  when 'weibo'
    div weibo
  when 'news'
    div news
  default
    div 'news'
if person.name === 'qq'
  div qzone
    include module
else
  div default
if person.name
  div qzone
else if person.age
  div age
else if person.sex
  div sex
else
  div default
while n < 4
  li while #{n++}
each val in [1,2,3]
  li val #{val}
each val,key in [1,2,3]
  li key,val#{val},#{key}