But soft what light through yonder window breaks It is the east and Juliet is the sun Arise fair sun and kill the envious moon Who is already sick and pale with grief從這個(gè)文件中我必須 8.4 打開文件 romeo.txt 并逐行讀取它。對于每一行，使用 split() 方法將該行拆分為單詞列表。該程序應(yīng)該構(gòu)建一個(gè)單詞列表。對于每行上的每個(gè)單詞，檢查該單詞是否已在列表中，如果沒有，則將其附加到列表中。程序完成后，按字母順序排序并打印結(jié)果單詞。您可以在http://www.py4e.com/code3/romeo.txt下載示例數(shù)據(jù)這是框架，所以我應(yīng)該只遵循這個(gè)代碼，并使用append()、slpit()和sort()我應(yīng)該使用它們。或者在其他情況下會顯示錯(cuò)誤。因?yàn)檫@個(gè)作業(yè)來自 coursera.comfname = input("Enter file name: ")fh = open(fname)lst = list()for line in fh:print(line.rstrip())輸出應(yīng)如下所示： ['Arise', 'But', 'It', 'Juliet', 'Who', 'already', 'and', 'breaks', 'east', 'envious', 'fair', 'grief', 'is', 'kill', 'light', 'moon', 'pale', 'sick', 'soft', 'sun', 'the', 'through', 'what', 'window', 'with', 'yonder']將不勝感激。謝謝
4 回答
catspeake
TA貢獻(xiàn)1111條經(jīng)驗(yàn) 獲得超0個(gè)贊
words = set()
with open('path/to/romeo.txt') as file:
for line in file.readlines():
words.update(set(line.split()))
words = sorted(words)
Qyouu
TA貢獻(xiàn)1786條經(jīng)驗(yàn) 獲得超11個(gè)贊
以下應(yīng)該有效：
fname = input("Enter file name: ")
with open(fname, 'r') as file:
data = file.read().replace('\n', '')
# Split by whitespace
arr = data.split(' ')
#Filter all empty elements and linebreaks
arr = [elem for elem in arr if elem != '' and elem != '\r\n']
# Only unique elements
my_list = list(set(arr))
# Print sorted array
print(sorted(arr))
拉風(fēng)的咖菲貓
TA貢獻(xiàn)1995條經(jīng)驗(yàn) 獲得超2個(gè)贊
要讀取文本文件，您必須先打開它：
with open('text.txt', 'r') as in_txt:
values = in_txt
l=[]
for a in values:
l.extend(a.split())
print(l)
用于with確保您的文件已關(guān)閉。'r'用于只讀模式。 extend將從列表中添加元素，在本例中a添加到現(xiàn)有列表中l(wèi)。
開滿天機(jī)
TA貢獻(xiàn)1786條經(jīng)驗(yàn) 獲得超13個(gè)贊
在 python 中使用sets 比示例中的 list 更好。
集合是沒有重復(fù)成員的可迭代對象。
# open, read and split words
myfile_words = open('romeo.txt').read().split()
# create a set to save words
list_of_words = set()
# for loop for each word in word list and it to our word list
for word in myfile_words:
list_of_words.add(word)
# close file after use, otherwise it will stay in memory
myfile_words.close()
# create a sorted list of our words
list_of_words = sorted(list(list_of_words))
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