将原pdf 拆解成独立的pdf

from PyPDF2 import  PdfReader, PdfWriter
file_reader = PdfReader("fsyy-en-cn.pdf")
# getNumPages() 获取总页数
for page in range(len(file_reader.pages)):
    # 实例化对象
    file_writer = PdfWriter()
    # 将遍历的每一页添加到实例化对象中
    file_writer.add_page(file_reader.pages[page])
    with open(r"fsyy\{}.pdf".format(page),'wb') as out:
        file_writer.write(out)