import os
import random

trainval_percent = 0.1
train_percent = 0.9
xmlfilepath = 'Annotations'
txtsavepath = 'ImageSets\Main'
# 歷遍"Annotations"資料夾然後返回列表
total_xml = os.listdir(xmlfilepath)

# 獲取列表的總數
num = len(total_xml)
list = range(num)


tv = int(num * trainval_percent)
tr = int(tv * train_percent)

trainval = random.sample(list, 
 
tv)
train = random.sample(trainval, tr)

ftrainval = open('ImageSets/Main/trainval.txt', 'w')
ftest = open('ImageSets/Main/test.txt', 'w')
ftrain = open('ImageSets/Main/train.txt', 'w')
fval = open('ImageSets/Main/val.txt', 'w')

for i in list:
    # 使用切片方法獲取檔名(去掉字尾".xml")
name = total_xml[i][:-4] + '\n'
if 
 
i in trainval:
        ftrainval.write(name)
        if i in train:
            ftest.write(name)
        else:
            fval.write(name)
    else:
        ftrain.write(name)

ftrainval.close()
ftrain.close()
fval.close()
ftest.close()