python如何实现敏感词替换

127 阅读 0 评论 84 点赞

我是靠谱客的博主兴奋皮带，这篇文章主要介绍python如何实现敏感词替换，现在分享给大家，希望可以做个参考。

python实现敏感词替换的方法：

思路

这道题练习的是字符串的替换，不过如果不小心的话很容易把过程想简单。在过程中会涉及到递归方法的使用，在Windows下用python2还涉及到编码的转换，要考虑到的是过滤完一遍字符串后可能并没有过滤完的情况，例如在过滤一遍并将敏感字符串替换之后剩余字符串中新组成了敏感词语的情况。这种情况就要用递归来解决，直到过滤替换完一遍之后的结果和过滤之前一样没有发生改变才能视为替换完成，否则在逻辑上是有疏漏的。

编写脚本

代码如下：

复制代码# -*- coding: utf-8 -*-
import os
curr_dir = os.path.dirname(os.path.abspath(__file__))
filtered_words_txt_path = os.path.join(curr_dir,'filtered_words.txt')
import chardet
def filter_replace(string):
    string = string.decode("gbk")
    filtered_words = []
    with open(filtered_words_txt_path) as filtered_words_txt:
        lines = filtered_words_txt.readlines()
        for line in lines:
            filtered_words.append(line.strip().decode("gbk"))
    print replace(filtered_words, string)
def replace(filtered_words,string):
    new_string = string
    for words in filtered_words:
        if words in string:
            new_string = string.replace(words,"*"*len(words))
    if new_string == string:
        return new_string
    else:
        return replace(filtered_words,new_string)
if __name__ == '__main__':
    filter_replace(raw_input("Type:"))1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
# -*- coding: utf-8 -*-
import os
curr_dir = os.path.dirname(os.path.abspath(__file__))
filtered_words_txt_path = os.path.join(curr_dir,'filtered_words.txt')
import chardet
def filter_replace(string):
    string = string.decode("gbk")
    filtered_words = []
    with open(filtered_words_txt_path) as filtered_words_txt:
        lines = filtered_words_txt.readlines()
        for line in lines:
            filtered_words.append(line.strip().decode("gbk"))
    print replace(filtered_words, string)
def replace(filtered_words,string):
    new_string = string
    for words in filtered_words:
        if words in string:
            new_string = string.replace(words,"*"*len(words))
    if new_string == string:
        return new_string
    else:
        return replace(filtered_words,new_string)
if __name__ == '__main__':
    filter_replace(raw_input("Type:"))
登录后复制