如何修改Python随机数生成程序使其运行指定次数并统计目标数生成次数

Alright, let's adjust your random number generator to run a specific number of times and count how often your target number appears. Here's a polished, functional version of your code with key improvements:

from random import randint

# Get and validate target number input
print("What would you like to test-roll today?")
print("(64, 128, 256, 384, 512, 1024, 5000)")
target_input = input().strip()
loot_table = {"64":64, "128":128, "256":256, "384":384, "512":512, "1024":1024, "5000":5000}

if target_input not in loot_table:
    print("Oops! That's not a valid option. Please choose from the listed numbers.")
    exit()
target_number = loot_table[target_input]

# Get and validate number of runs (ensures positive integer input)
print(f"\nHow many total rolls would you like to perform?")
while True:
    try:
        total_runs = int(input().strip())
        if total_runs > 0:
            break
        print("Please enter a positive number—can't roll zero or negative times!")
    except ValueError:
        print("That's not a number. Try again with an integer.")

# Track occurrences of the target number
target_hits = 0

# Execute the specified number of rolls
for _ in range(total_runs):
    current_roll = randint(1, target_number)
    if current_roll == target_number:
        target_hits += 1

# Output clear, formatted results
print(f"\n--- Roll Results ---")
print(f"Total rolls performed: {total_runs}")
print(f"Times {target_number} was rolled: {target_hits}")
print(f"Frequency: {target_hits/total_runs:.2%}")

Key Changes Explained #

• Input Validation: Added checks to make sure users enter valid target numbers and positive integers for run counts—prevents crashes from bad input.
• Fixed Loop Execution: Replaced the "stop on target hit" logic with a for loop that runs exactly total_runs times, as requested.
• Hit Tracking: A target_hits counter increments every time the target number is rolled, so we can report the total at the end.
• Enhanced Output: Includes a percentage frequency to make the stats easier to interpret.

内容的提问来源于stack exchange，提问作者rantof63