docs: function() {
  			if (this.createGridFlag) {
  				return;
  			}
  			// 为避免重复渲染，在开始清空里面内容
  			if($('#' + this.options.id)[0])
  				$('#' + this.options.id)[0].innerHTML = '';
  			var htmlStr = '<div id="' + this.options.id + '_grid" class="u-grid-grid">';
  				htmlStr += this.createColumnMenu();
  				htmlStr += this.createHeader();
  			htmlStr += this.createContent();
  			htmlStr += '</div>';
  			if($('#' + this.options.id)[0])
  				$('#' + this.options.id).html(htmlStr);
  			this.headerFirstClassFun();
  			this.initGridEventFun();
  			this.showType = 'grid';
  			this.afterGridDivsCreate();
  			this.createGridFlag = true;
  			this.realtimeTableRows = null;
  		}