获取用户位置信息

  

放在这里以后难得写：

CLLocationManager  *_locationManager = [[CLLocationManager alloc] init];

    [_locationManager startUpdatingLocation];
    CLLocationCoordinate2D currentlocation =[[_locationManager location] coordinate];
    [_locationManager release];
    NSLog(@"latitude=%f,longitude=%f",currentlocation.latitude,currentlocation.longitude);