Question

我已经定义了一个函数，该函数从我指定的字母开始搜索所有 5 个字母的单词的字符串，然后使用处理过的列表创建一个文本文件。

我目前必须为每个字母手动运行程序，如何更改我的代码，以便该函数将一个接一个地搜索字母表中的所有字母，并为每个结果创建一个单独的文本文件？

import re
from pathlib import Path
# define starting letter of word search
ltr = 'm' 
# define RegEx pattern to find all 5-letter words starting with a 
certain letter 
pattern = r'\b'+ltr+r'\w{4}\b'
# define Function WordSearch: search wordlist.txt with defined RegEx 
Pattern
def WordSearch():
    # set Path to Main Text file
    file = r'C:\Users\User1\OneDrive\Documents\wordlist.txt'
    # open Main Text file and set variable 'MainText' equal to contents
    fileToOpen = Path(file)
    f = open(fileToOpen)
    MainText = f.read()
    # search all words in Main Text and make list of those that fit the 
    # RegEx pattern defined above
    slist = re.findall(pattern,MainText)
    # make set from list to eliminate duplicate entries
    slist_nd = list(set(slist))
    # turn Set into a string
    sliststr = ' '.join(slist_nd)
    # open new txt file, write string into contents
    slist_file = open(r"C:\Users\User1\OneDrive\Documents\fivelist"+ltr+".txt", "w")
    slist_file.write(sliststr)
    # close files
    f.close()
    slist_file.close()
WordSearch()

2

1

Answer 1

给你.

import string
letters = string.ascii_lowercase

那你就可以了

for ltr in letters:
    pattern = r'\b'+ltr+r'\w{4}\b'

请注意，您必须缩进所有转发代码才能在 for 循环中。

Answer 2

使用列表和循环列表。为你的函数使用变量。在循环中调用函数。

import string
import re
from pathlib import Path
def WordSearch(pattern, ltr):
    # set Path to Main Text file
    file = r'C:\Users\User1\OneDrive\Documents\wordlist.txt'
    # open Main Text file and set variable 'MainText' equal to contents
    fileToOpen = Path(file)
    f = open(fileToOpen)
    MainText = f.read()
    # search all words in Main Text and make list of those that fit the 
    # RegEx pattern defined above
    slist = re.findall(pattern,MainText)
    # make set from list to eliminate duplicate entries
    slist_nd = list(set(slist))
    # turn Set into a string
    sliststr = ' '.join(slist_nd)
    # open new txt file, write string into contents
    slist_file = open(r"C:\Users\User1\OneDrive\Documents\fivelist"+ltr+".txt", "w")
    slist_file.write(sliststr)
    # close files
    f.close()
    slist_file.close()
alphabet = list(string.ascii_lowercase)
for x in alphabet:
    pattern = r'\b'+x+r'\w{4}\b'
    WordSearch(pattern, x)

你也可以研究线程。并在它自己的线程中启动每个函数。这样你就不必等待第一个完成下一个开始。

from threading import Thread

那就像这样.

threads = []
alphabet = list(string.ascii_lowercase)
for x in alphabet:
    pattern = r'\b'+x+r'\w{4}\b'
    t = Thread(target=WordSearch, args=(pattern, x))
    threads.append(t)
    
for x in threads:
    x.start()
for x in threads:
    x.join()