python3:fromstringimportdigits s='abc123def456ghi789zero0'remove_digits= str.maketrans('','', digits) res=s.translate(remove_digits)#'abcdefghizero'或者: filter(lambdax: x.isalpha(),"a1a2a3s3d4f5fg6h") 还可以:foriinrange(10): a.replace(str(i),'') python2:fromstringimportdigits s=...
Thestrip()method is useful when dealing with user input as it gets rid of surrounding spaces in the string. This means it doesn’t just remove spaces, it also removes tabs and new line characters, which are all characters we don’t usually want in user-provided strings. There are two mo...
个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/remove-k-digits/description/ 题目描述: Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. N...
~""" 34 printable = digits + letters + punctuation + whitespace 35 36 # Case conversion helpers 37 # Use str to convert Unicode literal in case of -U 38 l = map(chr, xrange(256)) 39 _idmap = str('').join(l) 40 del l 41 42 # Functions which aren't available as string ...
() # Remove punctuation and digits text = text.translate(str.maketrans('', '', string.punctuation + string.digits)) # Tokenize the text words = word_tokenize(text) # Remove stop words words = [word for word in words if word not in stop_words] # Stem or lemmatize the words words ...
``` # Python script to generate random text import random import string def generate_random_text(length): letters = string.ascii_letters + string.digits + string.punctuation random_text = ''.join(random.choice(letters) for i in range(length)) return random_text ``` 说明: 此Python脚本生成...
sub(r'#.*$', "", phone)print "Phone Num : ", num# Remove anything other than digitsnum = re.sub(r'\D', "", phone) print "Phone Num : ", num 以上实例执行结果如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Phone Num : 2004-959-559Phone Num : 2004959559 正则表达式...
```# Python script to generate random textimport randomimport stringdef generate_random_text(length):letters = string.ascii_letters + string.digits + string.punctuationrandom_text = ''.join(random.choice(letters) for i in range(le...
A string is a digit string if all characters in the string are digits and there is at least one character in the string. """ pass def isidentifier(self, *args, **kwargs): # real signature unknown """ Return True if the string is a valid Python identifier, False otherwise. ...
1.字符串的表现形式为:变量名=“ string ”或变量名=‘ string ’或 变量名=""" string """,比如: str1 = 'hello, world!' str2 = "hello, world!" str3 = "子曰:'学而时习之,不亦说乎'" str4 = ''' 离离原上草, 一岁一枯荣。