pattern for non-alphanumeric characterspattern=r"[^a-zA-Z0-9\s]"# Use re.sub() to replace special characters with an empty stringcleaned_string=re.sub(pattern,"",original_string)# Print the cleaned stringprint("Original String:",original_string)print("Cleaned String:",cleaned_string) ...
That concludes this tutorial. Just a recap we have explored there.sub()method capability to replace special characters in a string. We hope that this knowledge gained is useful and that you will use it in your future Python regex projects....
让我们对上面声明的示例文本使用replace。首先将特殊字符去掉,通过循环每个字符并替换成一个空字符串,然后将逗号转换为空格。 txt="A!!!,Quick,brown#$,fox,ju%m%^ped,ov&er&),th(e*,lazy,d#!og$$$"defprocessString(txt):specialChars="!#$%^&*()"forspecialCharinspecialChars:txt=txt.replace(speci...
print(s.replace('hello', 'thanks')) #修改字符串 print(s.find('l')) #在字符串中找l的索引 print(s.upper()) #变大写 print(s.lower()) #变小写sentence = "The cat is brown" q = "cat"if q == sentence.strip(): #strip()去掉空白 print('strings equal') #用==判断字符串是否相等i...
形式,需要对其进行排序,并根据条件筛选出前5条模拟表数据表名:table_a t_id(int) t_year(int) t_value(varchar) 1 2019 123,456 Mysql去除字符串中的特殊符号...使用到的函数:REPLACE(str,from_str,to_str) 用法 str:需要...
The encoding in which to encode the string. errors The error handling scheme to use for encoding errors. The default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and
x.decode('utf-8')-将字节字符串解码为UTF8字符串
字符串.isalnum() 所有字符都是数字或者字母，为真返回 Ture，否则返回 False。 字符串.isalpha() ...
Example using replace() : # Python3 code example# Remove special unwanted characters# Using replace()# Initializing original stringoriginal ="%T;h@is$ t:est ^S~te&ch*ie&s"# Printing original stringprint("Original String: "+ original)# Initializing unwanted stringunwanted ="!@#$;:!*%)...
The encoding in which to encode the string. errors The error handling scheme to use for encoding errors. The default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and