https://help.fanruan.com/finereport10.0/doc-view-4007.html
点击事件写JS
_g().parameterEl.getWidgetByName("cWhCode").setValue("");
_g().parameterEl.getWidgetByName("cWhCode").setText("");
this.options.form.getWidgetByName("控件名").setValue("");
_g().parameterCommit();
this.options.form.getWidgetByName("cWhCode").reset();点击事件,重置掉