如何从字符串中删除标点符号？

import re

def remove_punctuation(s):
    return re.sub(r'[^\w\s]', '', s)

string = "Hello, World! This is a test string."
result = remove_punctuation(string)
print(result)

import string

def remove_punctuation(s):
    result = ""
    for char in s:
        if char not in string.punctuation:
            result += char
    return result

string = "Hello, World! This is a test string."
result = remove_punctuation(string)
print(result)