【正则表达式应用】判断电话号码&&实现注释&&提取指定字符串

判断电话号码

注：可以给我充话费~

import re
# r 原生字符串 避免掉干扰


def checkPhone(number):
    # 18434766698
    # pat = r'1[35789]\d{9}$'

    # pat = r'1([35789]\d)|(47)\d{8}$'

    pat = r'1(([35789]\d)|(47))\d{8}$'
    res = re.match(pat,number)
    print(res)


checkPhone('18434766698')
checkPhone('12345678977')
checkPhone('14745678977')

实现注释

# 注释 /* part1 */    /* part2 */

import re
str1 = '/* part1 */    /* part2 */'

# /*代表不转义 正则表达时会被转义
print(re.findall('//*.*/*/',str1))
print(re.findall('//*.*?/*/',str1))

 提取指定字符串

# 需求：提取 fqx ... man
"""
*?  +?  X?  最小匹配
(?:x)   类似（xyz）但不表示一组
"""
import re
str1 = 'fqx is a good man ! fqx is a nice man ! fqx is a very headsome man!'

print('~~~~~贪婪匹配~~~~~~~')
print(re.findall('fqx.*man',str1))

print('~~~~~非贪婪匹配~~~~~~~')
print(re.findall('fqx.*?man', str1))