python 3.x覆盖以前的终端行

Question

我写了一个简单的程序来计算掷骰子的平均结果（毫无意义，但你必须从某个地方开始；P）：

import random, time
from random import randrange

count = 0
total = 0
one_count = 0 

for x in range(10000000):
    random = randrange(1,7)
    count = count + 1
    total = total + random
    average = total / count
    percentage = one_count / count * 100
    if random == 1:
        one_count = one_count + 1
    print("the percentage of ones occurring is", percentage, "and the average outcome is", average)
#   time.sleep(1)

为了清理它，我希望输出覆盖上一行。我尝试了所有我能找到的东西，但我唯一能做到的就是打印到同一行而不删除以前的内容，方法是将最后一行更改为：

print("the percentage of ones occuring is", percentage, "and the average outcome is", average, "/// ", end="")

哪个输出：

the percentage of ones occuring is 0.0 and the average outcome is 4.0 /// the percentage of ones occuring is 0.0 and the average outcome is 4.5 /// the percentage of ones occuring is 0.0 and the average outcome is 3.6666666666666665 /// 

有什么想法吗？

Answer 1

在末尾添加\r。这样，您编写的下一行将从上一行的开头开始。然后刷新输出，使其立即显示。

注意：如果下一行较短，剩余的字符仍会存在。

Answer 2

使用end='\r:

for x in range(100000):
    rnd = randrange(1,7) # don't use random
    count += 1
    total = total + rnd
    average = total / count
    percentage = one_count / count * 100
    if rnd == 1:
        one_count += 1
    print("the percentage of ones occurring is {} and the average outcome is {}".format(percentage,average),end='\r')
    time.sleep(.1)

另一方面，使用total = total + random 不是一个好主意，您正在导入随机模块并使用随机作为变量名。