1.1 KiB
1.1 KiB
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Python Len Function | Python Len函数 |
len()
是Python 3中的内置函数。此方法返回对象的长度(项数)。它需要一个参数x
。
参数
它需要一个参数, x
。此参数可以是序列(例如字符串,字节,元组,列表或范围)或集合(例如字典,集合或冻结集)。
回报价值
此函数返回传递给len()
函数的参数中的元素数。
代码示例
list1 = [123, 'xyz', 'zara'] # list
print(len(list1)) # prints 3 as there are 3 elements in the list1
str1 = 'basketball' # string
print(len(str1)) # prints 10 as the str1 is made of 10 characters
tuple1 = (2, 3, 4, 5) # tuple
print(len(tuple1)) # prints 4 as there are 4 elements in the tuple1
dict1 = {'name': 'John', 'age': 4, 'score': 45} # dictionary
print(len(dict1)) # prints 3 as there are 3 key and value pairs in the dict1