【python】用户名或手机号码 + 密码登录代码：
for i in range(10000):
username = input('请输入用户名或手机号码：')
panduan1 = username.islower() #用户名小写判断
panduan2 = username[0] #用户名首字母判断1
panduan21 = panduan2.isalpha() #用户名首字母判断2
panduan3 = len(username) #长度判断
panduan4 = username.isdigit() #手机号纯数字判断
# 用户名判断
if (panduan1 and panduan2 and panduan3 >= 6) or (panduan3 == 11 and panduan4):
break
else:
print('用户名或手机号格式错误，请重新输入')
for i in range(10000):
password = input('请输入密码：')
panduan5 = len(password) #密码判断
# 密码判断
if panduan5 == 6:
break
else:
print('密码格式错误，请重新输入')
if (username == 'adminer' or username == '11111111111') and password == '123456':
print('登录成功！')
else:
print('用户名或密码错误！')