[摘要]本文是對獲得徐家匯的天氣預報的講解，對學習IOS蘋果軟件開發有所幫助,與大家分享。

代碼：

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    [self getWeatherInfo];
    
}
//獲得徐家匯的天氣預報
-(void)getWeatherInfo{
    
    NSError *error;
    
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://m.weather.com.cn/data/101021200.html" ]];//代碼為徐家匯
    
    NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    
    NSDictionary *weatherDic = [NSJSONSerialization JSONObjectWithData:response  options:NSJSONReadingMutableLeaves error:&error];
    
    NSDictionary *weatherInfo = [weatherDic objectForKey:@"weatherinfo"];
    
    NSLog(@"天氣%@",[NSString stringWithFormat:@"\n%@\n%@\n%@\n%@\n%@\n ", [weatherInfo objectForKey:@"city"],[weatherInfo objectForKey:@"date_y"],[weatherInfo objectForKey:@"week"], [weatherInfo objectForKey:@"weather1"], [weatherInfo objectForKey:@"temp1"]]);
    
    /*
     天氣
     徐家匯
     2014年3月4日
     星期二
     小雨轉多雲
     11℃~6℃
     */

}

輸出：

2015-03-11 16:02:06.686 徐家匯天氣預報[5526:214455] 天氣

徐家匯

2014年3月4日

星期二

小雨轉多雲

11℃~6℃