如何使用python从文本文件中提取特定标题下的文本？

def extract_text_from_file(file_path, target_title):
    lines = []
    with open(file_path, 'r') as file:
        lines = file.readlines()

    extracted_text = ""
    found_target_title = False
    for line in lines:
        if line.startswith(target_title):
            found_target_title = True
        elif found_target_title:
            extracted_text += line

    return extracted_text

# 示例用法
file_path = "example.txt"  # 替换为实际的文件路径
target_title = "特定标题"  # 替换为实际的特定标题
extracted_text = extract_text_from_file(file_path, target_title)
print(extracted_text)