random.randint()的用法

供稿:hz-xin.com     日期:2025-05-21

random.randint(参数1,参数2),参数1、参数2必须是整数,函数返回参数1和参数2之间的任意整数, 闭区间。

函数的作用是,返回一个随机整型数,其范围为[low, high)。如果没有写参数high的值,则返回[0,low)的值。

从random可以看出是产生随机数,randint可以看出是产生随机整数(int)

参数如下

1、low: int

表示生成的数值大于等于low。

2、(hign = None时,生成的数值要在[0, low)区间内)

3、high: int (可选)

如果使用这个值,则生成的数值在[low, high)区间

4、size: int or tuple of ints(可选)

输出随机数组的尺寸,比如size = (m, n, k),则输出数组的shape = (m, n, k),数组中的每个元素均满足要求。size默认为None,仅仅返回满足要求的单一随机数。

5、dtype: dtype(可选):

想要输出的格式。如int64、int等等。

输出

out: int or ndarray of ints

返回一个随机数或随机数数组



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