Python 字典(Dictionary) get() 函数返回指定键的值。语法get()方法语法:dict.get(key[, value]) 参数key -- 字典中要查找的键。 value -- 可选,如果指定键的值不存在时,返回该默认值。返回值返回指定键的值,如果键不在字典中返回默认值 None 或者设置的默认值。
to get information. Synonyms: gain, win to go after, take hold of, and bring (something) for one's own or for another's purposes; fetch: Would you get the milk from the refrigerator for me? to cause or cause to become, to do, to move, etc., as specified; effect: to get one'...
to get oil by drilling; to get information. Synonyms: gain, win to go after, take hold of, and bring (something) for one's own or for another's purposes; fetch: Would you get the milk from the refrigerator for me? to cause or cause to become, to do, to move, etc., as specifi...
get('salary')) # value is provided print('Salary: ', person.get('salary', 0.0)) 输出 Name: Phill Age: 22 Salary: None Salary: 0.0 Python get() 方法与 dict[key] 访问元素 如果缺少 key,get() 方法将返回默认值。 但是,如果在使用 dict[key] , KeyError 时未找到 key,则会引发异常。
Python字典(Dictionary) get() 函数返回指定键的值,如果值不在字典中返回默认值。 语法 get()方法语法: dict.get(key, default=None) 参数 key – 字典中要查找的键。default – 如果指定键的值不存在时,返回该默认值。 返回值 返回指定键的值,如果值不在字典中返回默认值None。
Python 字典(Dictionary) get() 方法返回指定键的值。 语法 get()方法语法: dict.get(key, default=None) 参数 key -- 字典中要查找的键。 default -- 如果指定键的值不存在时,返回该默认值。 返回值 返回指定键的值,如果键不在字典中返回默认值 None 或者设置的默认值。 实例 以下实例展示了 get()方...
Python 字典(Dictionary) get() 函数返回指定键的值,如果值不在字典中返回默认值。语法get()方法语法:dict.get(key, default=None)参数key -- 字典中要查找的键。 default -- 如果指定键的值不存在时,返回该默认值。返回值返回指定键的值,如果值不在字典中返回默认值None。
python词典(Dictionary)的get()用法 get()方法语法:dict.get(key, default=None) 1. 先定义字典>>>dict = {'A':1, 'B':2} 2. 当key值存在于dict.keys()中时,调用get()方法,返回的是对应的value值>>>print(dict.get('A')) 返回为:
Python 字典(Dictionary) get() 函数返回指定键的值,如果值不在字典中返回默认值。语法get()方法语法:dict.get(key, default=None)参数key -- 字典中要查找的键。 default -- 如果指定键的值不存在时,返回该默认值值。返回值返回指定键的值,如果值不在字典中返回默认值None。
get /ˈgɛt/ verb gets; got /ˈgɑːt/ ; got or US gotten /ˈgɑːtn̩/ ; getting Britannica Dictionary definition of GET 1 [+ object] : to obtain (something): such as a : to receive or be given (something) He got a new bicycle for his birthday. I ...