Python使用replace()从字符串中删除字符(Python Remove Character from String using replace()) We can usestring replace() functionto replace a character with a new character. If we provide an empty string as the second a
s="Hello, World!"chars=['o','l']new_string=remove_characters(s,chars)print(new_string)# 输出: He, Wrd! 1. 2. 3. 4. 使用正则表达式删除指定元素: importredefremove_character_regex(s,char):pattern=re.compile(char)returnre.sub(pattern,'',s) 1. 2. 3. 4. 5. 这个函数使用正则表达式...
importclean_string=re.sub(r'[^\x00-\x7F]+','',non_ascii_string)print(f"String after removing non-ASCII characters using re.sub():{clean_string}")# Using translate() to remove non-ASCII charactersclean_string=non_ascii_string.translate({ord(i):Noneforiinnon_ascii_stringiford(i)>127}...
Python Code: # Function to remove all chars except given chardefremove_characters(str1,c):# List comprehension to keep only given charreturn''.join([elforelinstr1ifel==c])# Test stringtext="Python Exercises"# Print original stringprint("Original string")print(text)# Character to keepexcept...
defremove_after_character(string,char):# 将字符串分割成列表string_list=string.split(char)# 找到要删除字符的索引位置index=string.index(char)# 删除索引位置后面的字符new_string=string[:index+1]returnnew_string# 测试示例string='Hello, World! I love Python.'char=','new_string=remove_after_charact...
Python3 实例 参考方法: test_str="Runoob"new_str=test_str.replace(test_str[1)print(new_str) LW 81 参考方法: str='Runoob''' @param str 原字符串 @paramnum 要移除的位置 @return 移除后的字符串 '''defff(str,num):returnstr[:num]+str[num+1:];print(ff(str,2));print(ff(str,4))...
string [striŋ] 字符串类型 float [fləut] 单精度浮点类型 type [taip] 类型 bool ['bu:li:ən]布尔类型,真假 True [tru:] 真,正确的(成立的) False [fɔ:ls] 假,错误的(不成立的) encode [ɪnˈkəʊd] 编码 decode [ˌdi:ˈkəʊd] 解码 ...
有两种常见的方法可以实现此目的。...Python从字符串中删除字符 (Python Remove Character from String) Using string replace() function 使用字符串replace(...)函数 Using string translate() function 使用字符串translate()函数 Python使用replace()从字符串中删除字符 (Python Remove...请注意,该字符串在Python...
Return S centered in a string of length width. Padding is done using the specified fill character (default is a space)"""return""#在字符串的左边填充0,不会截断字符串defzfill(self, width):#real signature unknown; restored from __doc__"""S.zfill(width) -> str ...
' stRINg lEArn' >>> >>> str.zfill(20) #str右对齐,左边填充0 '00000000stRINg lEArn' 大小写转换 >>> str='stRINg lEArn' >>> >>> str.upper() #转大写 'STRING LEARN' >>> >>> str.lower() #转小写 'string learn' >>> >>> str.capitalize() #字符串首为大写,其余小写 ...