ios 连接www.baidu.com测试网络

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/**
 *  检测是否能上网
 *
 *  @return YES说明网络已经连接；NO说明没有网络连接
 */
- (BOOL) isConnectionAvailable
{
    SCNetworkReachabilityFlags flags;
    BOOL receivedFlags;
    
    SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(CFAllocatorGetDefault(), [@"www.baidu.com" UTF8String]);
    receivedFlags = SCNetworkReachabilityGetFlags(reachability, &flags);
    CFRelease(reachability);
    
    if (!receivedFlags || (flags == 0) )
    {
        return FALSE;
    } else {
        return TRUE;
    }
}

ios 连接www.baidu.com测试网络

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原文地址：http://www.cnblogs.com/now-or-never/p/5635168.html