#coding=utf-8
import
re
# 大小写h都可以的情况
ret = (
"[hH]"
,
"hello Python"
)
print(())
# h
ret = (
"[hH]"
,
"Hello Python"
)
print(()) # H
ret = (
"[hH]ello Python"
,
"Hello Python"
)
print(()) # Hello Python
# 匹配0到9第一种写法
ret = (
"
[0123456789]
Hello Python"
,
"7Hello Python”
)
# 7Hello Python
print(())
# 匹配0到9第二种写法
ret = (
"
[0-9]
Hello Python"
,
"7Hello Python”
)
print(()) # 7Hello Python
ret = (
"
[0-3,5-9]
Hello Python"
,
"7Hello Python"
)
print(()) # 7Hello Python
# 下面这个正则不能够匹配到数字4，因此ret为None
ret = (
"
[0-3,5-9]
Hello Python"
,
"4Hello Python"
)
print(()) # None