"""
re模块使用
1.re.findall(patern,s,flags=0)
2.regex = re.compile(pattern,flags=0)
regex.findall(s)
3.re.split(pattern,s)
4.re.sub(pattern,replace,string,max,flags=0) replace表示替换的字符串 max表示替换几处
5.re.subn(pattern,replace,string,max,flags=0) replace表示替换的字符串 max表示替换几处返回替换了几处
"""
import re
s = "hello:9090,addr:123456"
pattern =r"\w+:\d+"
l=re.findall(pattern,s)
print(l)
regex=re.compile(pattern)
print(regex.groups)
l = regex.findall(s)
print(l)
l =re.split(r'[:,]',s)
print(l)
l= re.sub(r":",'-',s)
print(l)
l= re.subn(r":",'-',s)
print(l)