text: UI = function(id) { // UserInterface。具象化としてButton,ToggleButton,SelectButton, Switch,RollSwitch,CircleSwitch, Slider等がある
      this._id = id;
  }
  Object.defineProperties(UI.prototype, {
      Id: {
          get: function() { return this._id; }
      },
      Html: {
          get: function() { return document.getElementById(`${id}`); }
      },
      Storage: {
          get: function() { return localStorage.getItem(`${id}`); }
          set: function(v) { return localStorage.getItem(`${id}`, v); }
      }
  //    ,
  //    Db: { // IndexedDB
  //        get: function() { return localStorage.getItem(`${id}`); }
  //        set: function(v) { return localStorage.getItem(`${id}`, v); }
  //    }
  }
  LineOfChars.prototype.load = function() {}
  LineOfChars.prototype.save = function() {}
  LineOfChars.prototype.addEvent = function() {}
  LineOfChars.prototype.removeEvent = function() {}
  