将输入的全名转换为姓氏+首字母

import re

def convert_name_to_initials(full_name):
    # 使用正则表达式匹配中文姓名
    if re.match(r'^[\u4e00-\u9fa5]+$', full_name):
        last_name = full_name[0]
        first_initial = full_name[1:2]
        return f"{last_name} {first_initial}"
    # 使用正则表达式匹配英文姓名
    elif re.match(r'^[A-Za-z]+ [A-Za-z]+$', full_name):
        name_parts = full_name.split()
        last_name = name_parts[-1]
        first_initial = name_parts[0][0].upper() + '.'
        return f"{last_name} {first_initial}"
    else:
        return "Invalid name format"

# 示例
print(convert_name_to_initials("John Doe"))  # 输出: Doe J.
print(convert_name_to_initials("张三"))      # 输出: 张 S

def convert_name_to_initials(full_name):
    try:
        # 正则表达式匹配逻辑
        ...
    except Exception as e:
        return f"Error: {e}"