正则表达式

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002125296.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)
![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002135981.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)
![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002151691.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)
![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002205198.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)

贪婪匹配和最小匹配。

最小匹配是*？
![在这里插入图片描述]( https://img-blog.csdnimg.cn/2019101500234461.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)
![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002349544.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)![在这里插入图片描述]( https://img-blog.csdnimg.cn/20191015002359248.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)![在这里插入图片描述]( https://img-blog.csdnimg.cn/201910150024086.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N1eXVlcw,size_16,color_FFFFFF,t_70)

posted @ 2019-10-15 00:27  sogeisetsu  阅读(224)  评论(0)    收藏  举报