# aardio 范例: 返回值

```aardio
//返回值
import console;  
import inet.http;

//创建 HTTP 对象
var http = inet.http();

//http 对象发送请求的函数基本都有 3 个返回值：响应数据,错误信息,错误代码
var data,err,errCode = http.post( "http://eu.httpbin.org/post" 
	,"username=user&password=pwd" );

if( data ){ 
	console.log(data);
}
else {
	if( http.statusCode ){
		//服务端返回错误信息
		console.log( http.lastResponse(), "HTTP错误代码:" + http.statusCode )
	}
	else{
		//本地内部错误
		console.log( err,errCode );
	}
}

http.close();
console.pause();
```