Python如何将循环输入的数值存入数组并格式化为指定货币格式输出？

Hey there! Let's get your code to output those bills in the formatted list you want. Here's how to adjust it step by step:

First, your original code only tracks the total sum but doesn't save each individual bill amount—so we need a list to store those values first. Then we can format each one and assemble the final output string.

Here's the modified code:

total_sum = 0
counter = 1
bills = []  # Create a list to store each input bill value

for _ in range(6):
    # Use an f-string for cleaner input prompt formatting
    bill_amount = float(input(f'Enter Bill #{counter}: '))
    bills.append(bill_amount)  # Add the input to our list
    total_sum += bill_amount
    counter += 1

# Format each bill to have a $ prefix
formatted_bill_strings = [f"${amount}" for amount in bills]

# Assemble and print the final formatted list
print(f"[{', '.join(formatted_bill_strings)}]")

What changed: #

• Added a bills list to keep track of every input value (since we need to reference them later for formatting).
• Switched to f-strings for both the input prompt and formatting the dollar amounts—they're more readable and concise than string concatenation with str().
• Used a list comprehension to convert each numeric bill amount into a string with a $ prefix (e.g., 1 becomes "$1").
• Used ', '.join(...) to combine all formatted strings into a single comma-separated string, then wrapped it in square brackets for the final output.

When you input 1,2,3,4,5,6, this will print exactly: [$1, $2, $3, $4, $5, $6]

内容的提问来源于stack exchange，提问作者wRONGx