Python学习——文件操作和异常处理

Posted 2020-11-20 qilf

# title = "Alice in Wonderland"
# print(title.split())


def count_words(filename):
    ‘‘‘ count how many words in a text file ‘‘‘
    try:
        with open(filename) as f_obj:
            contents = f_obj.read()
    except FileNotFoundError:
        pass
        #msg = "Sorry, the file " + filename + " does not exist."
        #print(msg)
    else:
        words = contents.split()
        print("The file " + filename + " has about " + str(len(words)) + " words.")


def addTwoNumber():
    ‘‘‘ add two numbers. ‘‘‘
    first_number = input("First Number: ")
    second_number = input("Second Number: ")
    try:
        first_number = int(first_number)
        second_number = int(second_number)
    except ValueError:
        print("Please check if your input is legal.")
        return False
    else:
        res = first_number + second_number
        print(str(first_number)+" + "+str(second_number)+" is "+str(res))
        return True