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          ??一站式輕松地調用各大LLM模型接口，支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻
          廣告
        
                        
                                                          
  

                

                
    
                
        
                
                            
|   字符 | 功能   |
| --- | --- |
|  ^  |  匹配字符串開頭  |
|  $  | 匹配字符串結尾   |
|  \b  | 匹配一個單詞的邊界   |
|  \B  |  匹配非單詞的邊界  |
~~~
# 匹配163.com的郵箱地址
# 通過$來確定末尾
ret = re.match("[\w]{4,20}@163\.com$", "xiaoWang@163.comheihei")
ret.group()
~~~

~~~
# 空白字符也表示邊界

~~~


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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