python dict.get(num, 0)
时间: 2024-04-24 12:26:40
浏览: 191
dict.get(num, 0) 是 Python 字典的一个方法,用于获取指定键的值。如果键存在于字典中,则返回对应的值;如果键不存在,则返回默认值(在这种情况下是 0)。
举个例子,假设有一个名为 dict 的字典,你可以使用 dict.get(num, 0) 来获取键 num 对应的值。如果 num 存在于字典中,将返回对应的值;如果 num 不存在于字典中,则返回 0。
请注意,get() 方法不会改变原始字典,而只是返回相应的值。
相关问题
python dict.get(num, 0)+1
The code `dict.get(num, 0)` is used to get the value associated with the key `num` in the dictionary `dict`. If the key `num` is not present in the dictionary, it returns the default value `0`.
For example, if `dict = {'a': 1, 'b': 2, 'c': 3}`, then `dict.get('b', 0)` will return `2`, and `dict.get('d', 0)` will return `0`.
list=[] while(1): try: num=int(input()) list.append(num) except: break dict={} for key in list: dict[key]=dict.get(key,0)+1 value=max(dict.values) print(value)注释
这是一段 Python 代码,主要功能是读取用户输入的数字,将其存储在一个列表中,然后统计列表中每个数字出现的次数,并输出出现次数最多的数字的出现次数。
具体解释如下:
1. `list=[]`:创建一个空列表,用来存储用户输入的数字。
2. `while(1):`:进入一个无限循环,直到用户
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