如何替换文件中的\‘？

def replace_in_file(file_path, old_char, new_char):
    try:
        # 读取文件内容
        with open(file_path, 'r', encoding='utf-8') as file:
            content = file.read()
        
        # 替换字符
        new_content = content.replace(old_char, new_char)
        
        # 写回文件
        with open(file_path, 'w', encoding='utf-8') as file:
            file.write(new_content)
        
        print(f"Successfully replaced '{old_char}' with '{new_char}' in {file_path}")
    except Exception as e:
        print(f"Error occurred: {e}")

# 使用示例
replace_in_file('example.txt', '\\\'', '\'')

def replace_in_large_file(file_path, old_char, new_char):
    try:
        temp_file_path = file_path + '.tmp'
        with open(file_path, 'r', encoding='utf-8') as infile, open(temp_file_path, 'w', encoding='utf-8') as outfile:
            for line in infile:
                new_line = line.replace(old_char, new_char)
                outfile.write(new_line)
        
        # 替换原文件
        import os
        os.replace(temp_file_path, file_path)
        
        print(f"Successfully replaced '{old_char}' with '{new_char}' in {file_path}")
    except Exception as e:
        print(f"Error occurred: {e}")