Question

对于这个程序我试图让用户在文件中输入他/她想要的文本，并让程序计算存储在该文件中的单词总数。例如，如果我输入“嗨我喜欢吃蓝莓馅饼”，该程序应该总共读7个单词。程序运行正常，直到我输入选项6，它会计算单词的数量。我总是得到这个错误：'str'对象没有属性'items'

#Prompt the user to enter a block of text.
done = False
textInput = ""
while(done == False):
    nextInput= input()
    if nextInput== "EOF":
        break
    else:
        textInput += nextInput

#Prompt the user to select an option from the Text Analyzer Menu.
print("Welcome to the Text Analyzer Menu! Select an option by typing a number"
    "\n1. shortest word"
    "\n2. longest word"
    "\n3. most common word"
    "\n4. left-column secret message!"
    "\n5. fifth-words secret message!"
    "\n6. word count"
    "\n7. quit")

#Set option to 0.
option = 0

#Use the 'while' to keep looping until the user types in Option 7.
while option !=7:
    option = int(input())

    #I get the error in this section of the code.
    #If the user selects Option 6, print out the total number of words in the
    #text.
    elif option == 6:
        count = {}
        for i in textInput:
            if i in count:
                count[i] += 1
            else:
                count[i] = 1
        #The error lies in the for loop below. 
        for word, times in textInput.items():
            print(word , times)

Answer 1

此处的问题是textInput是一个字符串，因此它没有items()方法。

如果您只想要单词数，可以尝试使用len：

print len(textInput.split(' '))

如果您想要每个单词及其各自的出现次数，则需要使用count代替textInput：

    count = {}
    for i in textInput.split(' '):
        if i in count:
            count[i] += 1
        else:
            count[i] = 1
    for word, times in count.items():
        print(word , times)

Answer 2

要计算单词总数（包括重复次数），可以使用这个单行，其中file_path是文件的绝对路径：

sum(len(line.split()) for line in open(file_path))

Python：计算文件中的单词总数？

2 个答案: