1 # 例子1：匹配账户，只能有字母和数字组成，长度限制6-10位
2 r1 = '^[0-9A-Za-z]{6,10}$'
3 a1 = '1234567AbC'
4 print(re.findall(r1,a1))
5
6
7 # 例子2：匹配qq号：要求纯数字，长度5-11，第一位不为0
8 r2 = r'^[1-9][0-9]{4,10}$'
9 a2 = '123987678'
10 print(re.findall(r2,a2))
11
12
13 # 例子3：匹配邮箱地址，只允许qq,163,gmail这三种邮箱地址
14
15 r3 = r'(^[\w-]+(\.[\w-]+)*@(qq|163|gmail)(\.[\w-]+)+$)'
16 a3 = '[email protected]'
17 a4 = '[email protected]'
18 print(re.findall(r3,a3))
19 print(re.findall(r3,a4))
标签：qq,10,正则表达式,re,print,findall,163 From： https://www.cnblogs.com/hd-test/p/18218630