我怎样才能让我的输入随机选择

Question

我需要弄清楚观众花了多少钱观看我字典中的一项。首先，我需要让他们输入我得到的观众人数。但是我必须让每个观众随机 select 一个项目（允许重复）。

然后显示每位观看者花费时间在每个项目上的总时间。最后，我需要显示所有观众观看的所有 items/vids 之间花费的总时间，以及观众观看了项目（不能重复）。我很困惑从哪里开始。

代码：

n = int(input())
my_dict = {}


for i in range(n):
    titles=input("What is the ")
    length=int(input("What is length?")) # You were taking the input of length as a string. 
    my_dict[titles] = length
print ("You have", n," on your. The names of your are:", my_dict)


shortest = min(my_dict.values())
longest = max(my_dict.values())

print("Your shortest video is", shortest,"minutes long.")
print("Your longest video is", longest,"minutes long.")


average = sum(my_dict.values())/ len(my_dict)


print("Your average length is", average)


sub = 0
while sub >= 0:
    sub = int(input("How many subscribers do you currently have? "))




if sub >= 0:
    print('Histogram:')
    for i in range(sub):
        choice = random.choice(list(my_dict))
        for i in range(choice):
                print('*', end=' ')
    print('\n')

我正在努力寻找解决方案，但我不知道从哪里开始，所以我想我不妨先 post 这里，以防我找不到答案。（此外，我不需要从技术上用直方图来演示这第一部分，我认为这很容易，如果您有其他想法，请告诉我！）

Answer 1

据我了解，您想知道号码。然后观众会得到一个随机视频。最后，告诉他们观看该视频所花费的时间，每个视频所花费的总时间（所有观众），以及最后所花费的总时间（所有观众观看所有视频）。如果我错了，请纠正我。您可以使用以下代码：

n = int(input())
my_dict = {}


for i in range(n):
    titles=input("What is the ")
    length=int(input("What is length?")) # You were taking the input of length as a string. 
    my_dict[titles] = length
print ("You have", n," on your. The names of your are:", my_dict)


shortest = min(my_dict.values())
longest = max(my_dict.values())

print("Your shortest video is", shortest,"minutes long.")
print("Your longest video is", longest,"minutes long.")


average = sum(my_dict.values())/ len(my_dict)


print("Your average length is", average)



sub = int(input("How many subscribers do you currently have? "))
total_time = 0 
total_time_eachvid = {}


if sub >= 0:
    print('Histogram:')
    for i in range(sub):
        choice = random.choice(list(my_dict))
        if choice in total_time_eachvid:
            total_time_eachvid[choice] += my_dict[choice] #If the video was already selected by a viewer once then add the time.
        else:
            total_time_eachvid[choice] = my_dict[choice] #If the video appears for first time then enter the length of the video.
        print("You have spent", my_dict[choice], "time.") # Printing the time or length of the video that the viewer selected(got randomly).
        total_time += my_dict[choice]
    print('\n')
print("Total Time spent by all viewers is:", total_time)
print("Total time spent on each video", total_time_eachvid)

我怎样才能让我的输入随机选择

How can I make my input make a random selection

python

random

input