给17类的牛津花朵数据集，增加label

oxford 17 flowers add label.py

file_a = open('/Users/shidanlifuhetian/All/data/flowers17/files.txt',mode='r')
text = file_a.readlines()
file_a.close()

file_b = open('./newtesx.txt',mode='a')
for i,item in enumerate(text):
    if i%80 ==0:
        class_num = str(i//80)
    t = item.split('\n')
    newtext = t[0]+' '+class_num+'\n'
    print(newtext)
    file_b.write(newtext)
file_b.close()