Qt獲取本機IPV4 IP地址

挺簡單的代碼，直接看吧

#include 
#include 

/*************************************  
* 獲取本機 IPV4 地址，如果有多個，返回第
* 一個有效的IPV4地址
**************************************/
QHostAddress getHostIPV4Address()
{
	foreach(const QHostAddress& hostAddress,QNetworkInterface::allAddresses())
		if ( hostAddress != QHostAddress::LocalHost && hostAddress.toIPv4Address() )
			return hostAddress;

	return QHostAddress::LocalHost;
}