__author__ = 'zhangxp'
print("Age:",22)

#import
#form module1 import open as open1
#from module2 import open as open2

#布尔值
#False,None,0,"",(),[],{}

#name = input("what is your name?")
#if name.endswith('zhangxp'):
#    print("hello zhangxp!")
#else:
#    print("hello welcomer")

#断言
#age = 10
#assert 0<age<100
#age = -1
#assert 0<age<100, 'age is must bettwen 0 and 10'

#name = ''
#while not name:
#    name = input('what is your name')
#    print(name)

for number in range(0,10):
    print(number)
#xrange在需要迭代一个很大序列时更高效
