python练习

#字符集
import re
s='abc,acc,adc,aec,afc,ahc'
# r=re.findall('a[cf]c',s)
# print(r)

# ['acc', 'afc']
# Process finished with exit code 0

# r=re.findall('a[cfd]c',s)
# print(r)
# ['acc', 'adc', 'afc']
# Process finished with exit code 0
r=re.findall('a[c-f]c',s)
print(r)

# ['acc', 'adc', 'aec', 'afc']
#

# Process finished with exit code 0

import re
a='c0c++7java8javascript6python'
#r=re.findall('\d',a)
#在a里找出数字 ['0', '7', '8', '6']
#   'python'  普通字符  '\d' 匹配一个数字字符等价于[0-9]
# Process finished with exit code 0
r=re.findall('\D',a)

# 匹配非数字['c', 'c', '+', '+', 'j', 'a', 'v', 'a', 'j', 'a', 'v', 'a', 's', 'c', 'r', 'i', 'p', 't', 'p', 'y', 't', 'h', 'o', 'n']
#
# Process finished with exit code 0
# if len(r) >0:
#     print('字符串包含php')
# else:
#     print('no')
print(r)
#print(a.index('python')>-1)
#print('python' in a)