更短的函数 varmaterials=['Hydrogen','Helium','Lithium','Beryllium'];materials.map(function(material){returnmaterial.length
,disabled:true}]},{id:2,label:'二级2-2',disabled:true,children:[{id:6,label:'三级3-2-1'},{id:7,label:'三级3-
MaterialstringCountuint}sweaters:=Inventory{"wool",17}tmpl,err:=template.New("test").Parse("{{.Count}}itemsaremadeof{{.Material