random module三个常用function: randint, choice, shuffle importrandomprint(random.randint(1,10))#从1到10(两头都包含)中随机选择一个数words = ['grable','craven','maven','mossback','faze','cagy','haggard','fogy'] random_word= random.choice(words)#从words list中随机选择一个print(random_wor...
>>> help(random.shuffle) Help on method shuffle in module random: shuffle(x, random=None) method of random.Random instance Shuffle list x in place, and return None. Optional argument random is a 0-argument function returning a random float in [0.0, 1.0); if it is the default None, th...
random.shuffle() 语法:random.shuffle(sequence, function) 参数: 序列:可以是列表 function : 可选,默认为 random()。它应该返回一个介于 0 和 1 之间的值。 返回:什么都没有 示例1:打乱列表 Python3实现 # import the random module importrandom # declare a list sample_list=['A','B','C','D',...
用法:random.shuffle(sequence, function) 参数: 顺序:可以是一个清单 函数:可选,默认为random()。它应该返回0到1之间的值。 返回:没有 范例1:改组列表 # import the random moduleimportrandom# declare a listsample_list = ['A','B','C','D','E'] print("Original list:") print(sample_list)# ...
Python random module中shuffle的源码,使用Knuth-Durstenfeld Shuffle算法。 defshuffle(self, x, random=None):"""x, random=random.random -> shuffle list x in place; return None. Optional arg random is a 0-argument function returning a random ...
Pythonrandom.sample()function is also available in the random module, which will return the random items of a specified length from the iterable objects likelist,string,tuple,set, etc. The random elements from the iterable objects are returned in a list. ...
1.2 正确使用 shuffle 函数的例子 num1 = list(range(1,39526)) #产生 1-39525 的数 random.shuffle(num1) #注意 shuffle 没有返回值,该函数完成 一种功能,就是对 list 进行排序打乱 num3 = num1[0:30000] #取前 30000 个行号的元素 num4 = num1[30000:39524] #取到后面 9525 个元素 这个时候才...
请注意你这里的用法, random.shuffle(items)是直接操作items的,相当于把items传址调用了,改变了items的元素顺序,shuffle跟sorted等是一样的直接操作传进去的参数,没有返回 值(或者说返回值是None)。你用 x = random.shuffle(items)那么x永远是None了,你这里可以这样用啊:def main():import ...
numpy.random.shuffle(arr1) print('After shuffling 2-D Array: \n',arr1) In the above code: The “numpy” module is imported. The “numpy.arange()” method is used to create a 2-D array, and “reshape()” is used to reshape the array in a “3×3” array. ...
This method is not accessible directly, so we need to import shuffle module and then we need to call this function using random static object.SyntaxFollowing is the syntax of Python random.shuffle() method −random.shuffle(lst) Parameters...