尝试找出一种在字符串中交换字符的方法(python)

def swap_characters(string, index1, index2):
    if index1 < 0 or index1 >= len(string) or index2 < 0 or index2 >= len(string):
        return string  # 索引超出范围，返回原字符串
    if index1 == index2:
        return string  # 索引相同，无需交换，返回原字符串

    if index1 > index2:
        index1, index2 = index2, index1  # 确保index1小于index2

    return string[:index1] + string[index2] + string[index1+1:index2] + string[index1] + string[index2+1:]

# 示例用法
original_string = "Hello, World!"
swapped_string = swap_characters(original_string, 1, 7)
print(swapped_string)  # 输出：Hdello, Worl!

def swap_characters(string, index1, index2):
    if index1 < 0 or index1 >= len(string) or index2 < 0 or index2 >= len(string):
        return string  # 索引超出范围，返回原字符串
    if index1 == index2:
        return string  # 索引相同，无需交换，返回原字符串

    char_list = list(string)
    char_list[index1], char_list[index2] = char_list[index2], char_list[index1]
    return ''.join(char_list)

# 示例用法
original_string = "Hello, World!"
swapped_string = swap_characters(original_string, 1, 7)
print(swapped_string)  # 输出：Hdello, Worl!