with open("aiessay_title_content.txt", encoding="utf-8") as f:
    data = f.read()

data_list = data.split("----------")


data_new = []
for i in data_list:
    data_dan_list = i.strip("\n").split("\n")

    title = data_dan_list[0]
    hexin = "".join(data_dan_list[1:])
    data_new.append("@@@@@".join([title, hexin]))


with open("data/题目5-核心.txt","w", encoding="utf-8") as f:
    for i in data_new[:20]:
        f.write(i)
        f.write("\n")