#随机生成6位数验证码
import random
code = []
for i in range(6):
if i == str(random.randint(1,5)):
code.append(i)
else:
temp = random.randint(65,90)
code.append(chr(temp))
print ''.join(code)
###扩充random用法，随机生成树，和程序无关
print random.random()
print random.randint(1,9)
print random.randrange(1,8)