数据分页

class Page:

    def __init__(self, data_list, page_num, page_sum=10):
        self.data_list = data_list
        self.page_num = page_num
        self.page_sum = page_sum

    @property
    def start(self):
        page_start = (self.page_num - 1) * self.page_sum
        return page_start

    @property
    def end(self):
        page_end = self.page_num * self.page_sum
        return page_end

    def show(self):
        for row in self.data_list[self.start: self.end]:
            print(row)


lst = []
for i in range(1, 301):
    lst.append(i)
while True:
    number = int(input('请输入页码：'))
    page_sums = int(input('请输入每页显示的数量：'))
    obj = Page(lst, number, page_sums)
    obj.show()