text: 
  let filter = []
  
  let filterData = {
      // be 动词
      be:['am','is','are','was','were','been'],
      // 动词
      verb:['do','did','done','doing','does','can','could','may','might','must','shall','should','will',
      'would','use','using','used','want'],
      // 代词
      pron:['i','me','us','we','you','he','him','she','her','it','they','them','my','your','from',
      'his','its','our','yours','their','theirs','ours','mine','what','who','whose','whom','which',
      'whatever','whichever','whoever','whomever','who','that','which','this','there','somebody',
      'anybody','everybody','nobody','someone','anyone','everyone','no one','something','anyting',
      'everything','nothing','all','an','other','any','both','each','either','few','little','many',
      'these','much','neither','none','some','when','such','into'],
      // 副词
      adv:['else','no','not','within','by','just','here','without','also','too','so','then','yet','how',
      'why','where','sure'],
      // 形容词
      adj:['most'],
      // 冠词
      art:['the'],
      // 介词
      prep:['to','of','as','in','on','at','with','for'],
      // 连词
      conj:['and','be','if','or','but','before'],
      // 助词
      aux:['have','has'],
      // 字母
      alphabet:['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'],
      // 数字
      nub:['one','two'],
      // 人名
      named:['mary','samantha'],
      // 简写或其他
      other:['af','tz','arr','fe','err','id','eg','don','api','var']
  }
  
  filter = filter.concat(filterData.be, filterData.verb, filterData.pron, filterData.adv, filterData.art, filterData.prep, filterData.conj, filterData.aux, filterData.alphabet, filterData.nub, filterData.named,filterData.other)
  function isFilter(element){
      return (filter.indexOf(element) > -1).toString()
  }
  
  export { filter, isFilter, filterData }