# aardio 范例: UPnP 端口映射查看工具
```aardio
//端口映射管理
import win.ui;
/*DSG{{*/
var winform = win.form(text="UPnP 端口映射查看工具";right=966;bottom=622)
winform.add()
/*}}*/
import web.view;
var wb = web.view(winform);
import sys.upnp.nat;
var natUpnp = sys.upnp.nat();
//测试添加端口映射，除第一个参数以外的其他参数都可以省略
natUpnp.add(9973,"TCP",9973,,"添加端口映射测试")
wb.external = {
getMappingCollection = function(){
return JSON.stringifyArray(natUpnp.getTable());
};
deleteItem = function(externalPort,protocol){
return natUpnp.remove(externalPort,protocol)
};
natUpnpValid = function(){
return natUpnp.valid();
};
}
wb.html = /**
WebView2
**/
winform.show();
win.loopMessage();
```