import os def func(filepath):     res = os.listdir(filepath)     list1 = [] for k in res:         ret = os.path.join(filepath,k) if os.path.isfile(ret):             list1.append(ret) else:             func(ret) for m in list1: with open('%s'% m,'rb')as f:             f1 =f.read() with open('合并的内容','a')as f2:                 f3 = str(f1)                 f2.write(f3) return list1 x = func('../../MyFirstPython') print(x)