# aardio 范例: 检测网络状态



```aardio
//断网检测
import fonts.fontAwesome;
import win.ui;
/*DSG{{*/
var winform = win.form(text="检测网络状态";right=759;bottom=469;bgcolor=0xFFFFFF;max=false)
winform.add(
btnOpenNetworkConnections={cls="button";text="打开网络连接";left=226;top=339;right=463;bottom=398;bgcolor=0xFFFFFF;note="打开 控制面板 / 网卡列表";z=3};
lbStatus={cls="plus";left=249;top=57;right=678;bottom=98;align="left";font=LOGFONT(h=-19);transparent=1;z=2};
plusNetworkStatus={cls="plus";text="网络已连接";left=66;top=57;right=242;bottom=98;align="left";color=32768;disabled=1;font=LOGFONT(h=-19);iconStyle={align="left";font=LOGFONT(h=-27;name='FontAwesome');padding={left=9}};iconText='\uF205';textPadding={left=49};z=1}
)
/*}}*/

import wsock.networkChange;
wsock.networkChange.wait(winform).onNetworkChanged = function(){
	
	//网络状态变更触发此回调
	winform.plusNetworkStatus.checked = wsock.tcp.client.test();
	
	winform.lbStatus.disabledText = {"✶";"✸";"✹";"✺";"✹";"✷";text=' '}
	winform.lbStatus.onNetworkChanged();
}

import inet.ras;
import win.debounce;
winform.lbStatus.onNetworkChanged = win.debounce( function(){
	winform.lbStatus.disabledText = null;
	
	/*
	win.debounce 可以避免短时间内不必要地连续调用此函数。
	也可以延时调用 inet.ras.isAlive 以获取刷新后的状态。
	*/
	var wan,lan = inet.ras.isAlive(); 
	if( lan ) winform.lbStatus.text = "已有网卡建立了局域网连接";
	else if( wan ) winform.lbStatus.text = "已有网卡建立了广域网连接";
	else winform.lbStatus.text = "没有联网";	
},1000);

winform.plusNetworkStatus.skin({
	text="网络已断开"; 
	color = {
		default = 0xFFFF0000; 
		disabled = 0xFFFF0000;  
	};
	
	checked = {
		text = "网络已连接";
		color = {
			default = 0xFF008000; 
		};	
	}
});

import process;
winform.btnOpenNetworkConnections.oncommand = function(id,event){	
	process.explore("shell:::{7007ACC7-3202-11D1-AAD2-00805FC1270E}");
}

winform.onNetworkChanged();
winform.show();
win.loopMessage();
```