NSLog(@"Failed to get WAN IP Address!\n%@", error);
     
    NSString *IP = @"0.0.0.0";
    //http://61.4.185.48:81/g/（中国气象网的接口）

    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:1.0];
    
    NSURLResponse *response = nil;
    NSError *error = nil;
    NSData *data = http://www.sjsjw.com/100/000045MYM005578/[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
    if (error) {
    } else {
        NSString *responseStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        IP = responseStr;
    }
    NSLog(@"%@",IP);
    return IP;
    NSURL *url = [NSURL URLWithString:@"http://61.4.185.48:81/g/"];