1、打开python开发工具IDLE，新建‘zzsearch.py’文件，并写代码如下:import repattern = re.compile(r'\d+')s = pattern.search(r'dsddh888')print (s.group())
3、改写代码，返回匹配的下标，代码如下import repattern = re.compile(r'\d+')s = pattern.search(r'dsddh888')print (type(s.span()))print (s.span()) print (s.group())
5、search也可以添加起始位置参数，修改代码如下，顺便复习一下分组import repattern = re.compile(r'([a-z]+) ([a-z]敫苻匈酃+)',re.I) #注意两个括号间有空格m = pattern.search('2222nihao Nihao WE',5)print (m)print (m.group())print (m.group(0))print (m.group(1))print (m.span(1))print (m.group(2))print (m.span(2))
