检查Python中的文本文件是否为空

import os

def is_file_empty(file_path):
    return os.path.getsize(file_path) == 0

file_path = 'example.txt'
if is_file_empty(file_path):
    print("文件为空")
else:
    print("文件不为空")

def is_file_empty(file_path):
    try:
        with open(file_path, 'r') as file:
            return not bool(file.read(1))
    except FileNotFoundError:
        print(f"文件 {file_path} 不存在")
        return True

file_path = 'example.txt'
if is_file_empty(file_path):
    print("文件为空")
else:
    print("文件不为空")

def is_file_empty(file_path):
    try:
        with open(file_path, 'r') as file:
            return not bool(file.readline())
    except FileNotFoundError:
        print(f"文件 {file_path} 不存在")
        return True

file_path = 'example.txt'
if is_file_empty(file_path):
    print("文件为空")
else:
    print("文件不为空")