10-8

def count_words(filename):try:with open(filename) as f:c=f.read()except FileNotFoundError:print(f"Sorry,the file {filename} did not exist.")else:print(c)filenames=['cats.txt','dogs.txt']		
for filename in  filenames:filename.hanshu() #记错了在类中使用句点表示法，表示为instance.methods()#在函数中，调用函数的方法是函数名（）即可count_words(filename)

10-9

def method(filename):try:with open(filename) as f:c=f.read()except FileNotFoundError:passelse:print(c)filenames=['cats.txt','dogs.txt']
for filename in filenames:method(filename)