forkey, valueincfg.IMAGE_PATHS.items: ifisinstance(value, list): images = [] foriteminvalue: images.append(pygame.image.load(item)) game_images[key] = images else: game_images[key] = pygame.image.load(value) game_sounds = {} forkey, valueincfg.AUDIO_PATHS.items: ifkey =='bgm':c...
Out[2]: 5.0 In [3]: (lambda x: x/2)(10) Out[3]: 5.0 In [4]: (lambda x, y: x / y)(10, 2) Out[4]: 5.0 In [5]: (lambda: 'amazing lambda')() # func with no args! Out[5]: 'amazing lambda' 2、sorted函数的内部实现是会遍历列表中的每一个元素(例如, e in list),...
File"c:\users\lenovo\appdata\local\programs\python\python37\lib\site-packages\PyInstaller\__main__.py", line 109,inrun spec_file = run_makespec(**vars(args)) File"c:\users\xxxxxx\appdata\local\programs\python\python37\lib\site-packages\PyInstaller\__main__.py", line 56,inrun_makesp...
print(x, y, args, kwargs, sep='\n', end='\n\n') fn(3,5)# no fn(3,5,7)# no fn(3,5, a=1, b='abc')# no fn(3,5, y=6, x=7, a=1, b='abc')#yes 在Python3之后,新增了keyword-only参数。 keyword-only参数:在形参定义时,在一个*星号之后,或一个可变位置参数之后,出现...
这是因为python3把cmp参数彻底移除了,并把它wrap进了cmp_to_key里面,即需要把cmp函数通过functools.cmp_to_key这个函数转换成key函数,才被sorted函数认识,才认可这个是排序规则: In Py3.0, the cmp parameter was removed entirely (as part of a larger effort to simplify and unify the language, eliminating...
net.URL; public class ApiCallWithApiKey { public static void main(String[] args) { String apiUrl = "https://example.com/api/endpoint"; String apiKey = "your_api_key_value"; try { URL url = new URL(apiUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); ...
namespace Walterlv.Tools { class Program { static void Main(string[] args) { List<string> lines = new List<string>(); foreach (string line in File.ReadAllLines(args[0]).Where(x=>!String.IsNullOrEmpty(x)).Select(x => x.Trim())) { if (lines.Contains(line)) Console.WriteLine(line)...
>>> 'Python'.find('Py') 0 >>> 'Python'.find('y') 1 >>> 'Python'.find('aa') -1 1. 2. 3. 4. 5. 6. str.format(*args, **kwargs)格式化字符串 格式化字符串 >>> '{0} + {1} = {2}'.format(1,2,1+2) '1 + 2 = 3' ...
public static void main(String[] args) { Jedis jedis = new Jedis("localhost"); jedis.connect(); Set<String> keys = jedis.keys("*"); for (String key : keys) { System.out.println(key); } jedis.close(); } } 以上代码连接到本地的Redis服务器,并通过keys("*")方法获取所有的Key值,并...
max_length=max([len(lst)forlstinargs]) outList=[] foriinrange(max_length): result.append([args[k][i]ifi<len(args[k])elsemissing_valforkinrange(len(args))]) returnoutList 3、对字典列表进行排序 这一组日常列表任务是排序任务,根据列表中包含的元素的数据类型,我们将采用稍微不同的方式对它们...