我们可以将异常处理添加到示例代码中,以提高程序的健壮性: defremove_string_from_file(file_path,string_to_remove):try:# 读取文件内容withopen(file_path,'r',encoding='utf-8')asfile:content=file.read()print("原始内容:\n",content)# 删除指定字符串modified_content=content.replace(string_to_remove,...
In addition, we canaccess just a specific characteror aslice of charactersof a string. We might want to do this, for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of...
invalid_chars = ['@'] # Characters you don't want in your text# Determine if a string has any character you don't wantdef if_clean(word): for letter in word: if letter in invalid_chars: return False return Truedef clean_text(text): text = text.split(' ') # Convert text to a...
"# Example 1: Using the string.translate() method# Remove punctuation from a stringresult=my_string.translate(str.maketrans('','',string.punctuation))# Example 2: Using replace() method# Remove punctuation from a stringforpunctuationinstring.punctuation:my_string=my_string.replace(punctuation,''...
266 If chars is given and not None, remove characters in chars instead. 267 268 """ 269 return s.lstrip(chars) 270 271 # Strip trailing tabs and spaces 272 def rstrip(s, chars=None): 273 """rstrip(s [,chars]) -> string 274 275 Return a copy of the string s with trailing ...
string = "Welcome to sparkbyexamples" # Example 1: Using translate() function # Remove multiple characters from the string characters_to_remove = ['e', 'm', 's', 'W', ' '] translation_table = str.maketrans('', '', ''.join(characters_to_remove)) ...
table = string.maketrans("","") regex = re.compile('[%s]' % re.escape(string.punctuation)) def test_set(s): return ''.join(ch for ch in s if ch not in exclude) def test_re(s): # From Vinko's solution, with fix.
Remove Newline Characters From a String Using thereplace()Method Declare a string variable with some newline characters: s='ab\ncd\nef' Copy Replace the newline character with an empty string: print(s.replace('\n','')) Copy The output is: ...
u"(\ud83c[\udde0-\uddff])"#flags(iOS)"+",flags=re.UNICODE)defremove_emoji(text):returnemoji_pattern.sub(r'',text) 参考removing-emojis-from-a-string-in-python, 如果正则没有写对 还可以遇到sre_constants.error: bad character range之类的错误 。
我们在脚本里自定义的remove_last_reachable_ip_file_exsit(self)这个方法就是干这件事的。 因为我们要依次ping 172.16.0.x, 172.16.1.x, 172.16.2.x, 172.16.3.x, 172.16.4.x这五个/24网段的IP,它们是有规律可循的,第三字段是从0-4, 所以这里我们用range(5)创建一个包含数字0-4的列表,并把它...