Python 3中如何将用户输入转为混合数据类型的列表？

Got it, let's sort this out for you! Right now, you're splitting the entire input string into individual characters, but what you actually want is to split the input into separate elements first, then convert the numeric ones to integers while keeping text as strings. Here's a straightforward way to do it:

Step-by-Step Solution #

First, we'll split the input string into a list of string elements using split()—this automatically handles spaces between your input values, giving us something like ['hello', '1', '5'] instead of individual characters. Then, we'll process each element to convert numbers to integers.

Method 1: Using Try-Except (Robust for Edge Cases) #

This approach works even if you have potential edge cases like negative numbers or inputs that might have non-digit characters mixed in (though your example doesn't need that):

# Capture input and split into separate elements
raw_input = input()
elements = raw_input.split()

# Process each element to convert numbers to integers
final_list = []
for elem in elements:
    try:
        # Attempt to convert to integer
        final_list.append(int(elem))
    except ValueError:
        # If conversion fails, keep it as a string
        final_list.append(elem)

print(final_list)

When you input hello 1 5, this will output exactly what you want: ['hello', 1, 5].

Method 2: Using List Comprehension (Concise for Simple Cases) #

If you're dealing with positive integers only, you can use isdigit() to check if a string is a number, then use a list comprehension for a shorter solution:

raw_input = input()
final_list = [int(elem) if elem.isdigit() else elem for elem in raw_input.split()]
print(final_list)

Note: This won't handle negative numbers (since -1 has a minus sign, isdigit() returns False). If you need to support negatives, adjust the check to elem.lstrip('-').isdigit() instead.

内容的提问来源于stack exchange，提问作者Minhaz