批量文件B中选出部分文件（与A文件夹数量相同），放到C中

import glob
import os,sys
import shutil



fileDir = 'F:/project/Breast/InBreast/INBreast/outimgpatch/no/'    #源图片文件夹路径
numDir = 'F:/project/Breast/InBreast/INBreast/outimgpatch/calcification/'
tarDir = 'F:/project/Breast/InBreast/INBreast/outimgpatch/nocalcification/'    #移动到新的文件夹路径

import os, random, shutil
def moveFile(numd1,numd2,numd):  #(fileDir,numDir)
        pathDir = os.listdir(numd1)    #取图片的原始路径
        filenumber=len(pathDir)
        pathDir1 = os.listdir(numd)  # 取图片的原始路径
        filenumber1 = len(pathDir1)
        print(filenumber,filenumber1)
        #rate=0.1    #自定义抽取图片的比例，比方说100张抽10张，那就是0.1
        picknumber=filenumber1#按照rate比例从文件夹中取一定数量图片
        sample = random.sample(pathDir, picknumber)  #随机选取picknumber数量的样本图片
        print (sample)
        i = 1
        for name in sample:
                shutil.copy(numd1 + name, numd2+name[0:9]+str(i)+'.png')
                i = i+1
        return

if __name__ == '__main__':
    txtLists = os.listdir(numDir)  # 列出文件夹下所有的目录与文件
    for filename in txtLists:
        print(filename)
        numd = numDir + filename + '/'
        numd2 = tarDir + filename + '/'
        numd1 = fileDir + filename + '/'
        print(numd1)
        moveFile(numd1,numd2,numd)