this.options.form.getWidgetByName("控件名").getValue();//取实际值
this.options.form.getWidgetByName("控件名").getText();//取显示值
JS实现在报表参数界面获取body中控件的值-https://help.fanruan.com/finereport/doc-view-1864.html
JS获取决策报表参数界面控件值-https://help.fanruan.com/finereport/doc-view-2078.html
var a=_g().parameterEl.getWidgetByName('控件').getValue();