前面讲到了,我们可以使用变量来指定不同的数据类型,对网工来说,常用的数据类型的有字符串(String), 整数(Integer), 列表(List), 字典(Dictionary),浮点数(Float),布尔(Boolean)。另外不是很常用的但需要了解的数据类型还包括集合(set), 元组(tuple)以及空值(None),下面一一举例讲解。
move-AttributeDictionary-to-global-util add-theme-field-to-context-one-field skip-tornado-6-5-0 dependabot/npm_and_yarn/frontend/types/node-22.15.21 feature/add-width-latex-divider prettify feature/add-height-to-code bnisco/ccv2-proto ...
4))plt.plot([1,2,3,4,5])sht_2.pictures.add(fig,name='MyPlot',update=True)...
importsocket#Imported sockets moduleTCP_IP ='127.0.0.1'TCP_PORT =8090BUFFER_SIZE =1024#Normally use 1024, to get fast response from the server use small sizetry:#Create an AF_INET (IPv4), STREAM socket (TCP)tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)exceptsocket.error,...
type(nameoftheclass,tupleofthe parentclass(forinheritance,can be empty),dictionary containing attributes names and values) 传三个参数: class 类的名称, 字符串类型 bases 是需要继承的类,默认继承object,可以为空,类型传元组 dict 字典类型,传类的属性和方法 ...
def change_dict_key(dictionary, old_key, new_key): if old_key in dictionary: dictionary[new_key] = dictionary.pop(old_key) # 示例用法 my_dict = {'name': 'John', 'age': 25, 'city': 'New York'} print("原始字典:", my_dict) change_dict_key(my_dict, 'name', 'full_name')...
parser.add_argument("DIR_PATH",help="Path to directory") args = parser.parse_args() path_to_scan = args.DIR_PATH 要迭代一个目录,我们需要提供一个表示其路径的字符串给os.walk()。这个方法在每次迭代中返回三个对象,我们已经在 root、directories 和 files 变量中捕获了这些对象: ...
typedef struct { PyObject_HEAD PyClassObject *in_class;! ! PyObject! *in_dict;! ! PyObject! *in_weakreflist; ! } PyInstanceObject; /* The class object */ /* A dictionary */ /* List of weak references */ 类型和实例各⾃自拥有⾃自⼰己的名字空间. >>> User.__dict__ >>> ...
[:port] # http://hostname[:port] # 2) Do not add a trailing slash at the end of file server path. FILE_SERVER = 'sftp://sftpuser:Pwd123@10.1.3.2' # Remote file paths: # 1) The path may include directory name and file name. # 2) If file name is not specified, indicate ...
propNumDict is a Python dictionary with keys that are the unique values in the acDaily PROPNUM field. The dictionary values start as empty lists. i += 1 print str(i) + " - " + strftime("%Y-%m-%d %H:%M:%S") # This is used to time the duration of each iteration...