1.1 KiB
1.1 KiB
title, localeTitle
| title | localeTitle |
|---|---|
| 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
