学习ios开发系列之，利用百度词典api写的ios客户端程序

NSString* queryword = word.text;
    
    NSString* urlStr = [[NSString alloc] initWithFormat:@"http://openapi.baidu.com/public/2.0/translate/dict/simple?client_id=5kHZHeo8MN7L6NmPTGV6POsb&q=%s&from=en&to=zh",queryword.UTF8String];
    
    
    NSURL* url = [NSURL URLWithString:urlStr];
    
    
    
    NSURLRequest* request = [[NSURLRequest alloc] initWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30];
    
    NSHTTPURLResponse* response = nil;
    NSData* returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];
    
    NSString* resultData = [[NSString alloc] init];
    
    NSError* error;
    
    NSDictionary* json = [NSJSONSerialization JSONObjectWithData:returnData options:kNilOptions error:&error];
    
    NSDictionary* data = [json objectForKey:@"data"];
    
    NSArray* symbols = [data objectForKey:@"symbols"];
    
    for(int i=0;i<symbols.count;i++)
    {
        
        NSDictionary* item = [symbols objectAtIndex:i];
        NSArray* temp = [item objectForKey:@"parts"];
        
        for (int k = 0; k< temp.count;k++)
        {
            NSDictionary* subItem = [temp objectAtIndex:k];
            
            resultData = [resultData stringByAppendingString:[subItem objectForKey:@"part"]];
        
            NSArray* arr = [subItem objectForKey:@"means"];
        
            for(int j=0;j<arr.count;j++)
            {
                resultData = [resultData stringByAppendingString:[arr objectAtIndex:j]];
            }
        }
    }

    
    
    result.text = resultData;