使用随机随机从-100到100的随机浮点数

Question

我想使用random.random()生成随机浮点数并使用一些数学修改输出,以便最终得到-100到+100.使用数学我想使用乘法和减法来生成-100到+100范围内的三个随机浮点数.

这是我的代码:

import random
random_float = (random.random())
print("First random float between -100 and +100:", random_float - 10)
print("Second random float between -100 and +100:", random_float * 70)
print("Third random float between -100 and +100:", random_float * 100)

这是我的输出:

First random float between -100 and +100: -9.932043497731886
Second random float between -100 and +100: 4.756955158768027
Third random float between -100 and +100: 6.795650226811468

这看起来不错吗？

Answer 1

random.uniform(A,B)

你可以使用random.uniform(a,b):

random.uniform(-100,100)

如果你绝对想自己计算:

random.random()*200-100

你的代码

以下是将其集成到代码中的方法.请注意,random如果您想要独立的随机数,则需要调用三次:

import random

for ordinal in ['First', 'Second', 'Third']:
    random_float = random.uniform(-100,100)
    print "%s random float between -100 and +100: %f" % (ordinal, random_float)

它输出:

First random float between -100 and +100: -67.216959
Second random float between -100 and +100: 25.984499
Third random float between -100 and +100: 60.656098