#coding:gbk
def cats_dogs(filename):
	'''读取你需要的txt文件,且容错'''
	try:
		with open(filename) as f_obj:
			i = f_obj.read()
	except FileNotFoundError:
               #pass
		print('对不起,你的文件 '+filename+' 未找到.')
	else:
		print(i)
filenames = ['dogs.txt','cats.txt','waha.txt']
for filename in filenames:
#	print('你的文件 :'+filename+' 包含以下内容:')
	cats_dogs(filename)

cats dogs