code: function(node, pesudos) {
        var len = pesudos.length,
          pesudoFilters = expandFilters["pesudos"];
  
        for (; len--;) {
          var pesudo = pesudos[len],
            name = pesudo.name,
            filter = pesudoFilters[name];
  
          if (!filter) throw Error("不支持的伪类:" + name);
          if (!filter(node, pesudo.param)) return false;
        }
        return true;
      }
docs: pesudos会分发到ExpandsFilter中pesudo中去处理