--- title: Python Min Function localeTitle: Python Min函数 --- `min()`是Python 3中的内置函数。它返回可迭代中的最小项或两个或多个参数中的最小项。 ## 参数 此函数将两个或多个数字或任何类型的iterable作为参数。在给出一个iterable作为参数时,我们必须确保iterable中的所有元素都是相同的类型。这意味着我们无法传递一个包含字符串和整数值的列表。 有效参数: ``` min(2, 3) min([1, 2, 3]) min('a', 'b', 'c') ``` 参数无效: ``` min(2, 'a') min([1, 2, 3, 'a']) min([]) ``` ## 回报价值 返回iterable中的最小项。如果提供了两个或多个位置参数,则最小的位置参数 被退回。如果iterable为空并且未提供default,则引发ValueError。 ## 代码示例 ``` print(min(2, 3)) # Returns 2 as 2 is the smallest of the two values print(min(2, 3, -1)) # Returns -1 as -1 is the smallest of the two values list1 = [1, 2, 4, 5, -54] print(min(list1)) # Returns -54 as -54 is the smallest value in the list list2 = ['a', 'b', 'c' ] print(min(list2)) # Returns 'a' as 'a' is the smallest in the list in alphabetical order list3 = [1, 2, 'abc', 'xyz'] print(min(list3)) # Gives TypeError as values in the list are of different type #Fix the TypeError mentioned above first before moving on to next step list4 = [] print(min(list4)) # Gives ValueError as the argument is empty ``` ![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":火箭:") [运行代码](https://repl.it/CVir/4) [官方文件](https://docs.python.org/3/library/functions.html#min)