#!/usr/bin/env python

# -*- coding:utf-8 -*-

# Author:Hiuhung Wan

print(10%2)  #求模（取模）  # 0

print(11%2)                 # 1

print(8%2.5)                #0.5

print(10//3) #取整除        # 3

print(-10//3)               # -4

#!/usr/bin/env python

# -*- coding:utf-8 -*-

# Author:Hiuhung Wan

a = [1,2,3,4]

print(1 in a)       #True

print(0 in a)       #False

print(0 not in a)   #True

#!/usr/bin/env python

# -*- coding:utf-8 -*-

# Author:Hiuhung Wan

a = [1,2,3,4,5]

print(type(a) is list)           #True

print(type("123") is str)       #True

print(type(123) is int)         #True

print(type("123") is not int)  #True

#!/usr/bin/env python

# -*- coding:utf-8 -*-

# Author:Hiuhung Wan

a = 56        #53 = 0011 1000

b = 37        #37 = 0010 0101

#&，按位与，and，两个都是1，取1，其他情况取0

print(a&b)    #     0010 0000 = 32

#|，按位或，or，任意有一个是1，取1，其他情况取0

print(a|b)    #     0011 1101 = 61

# ^，按位异或，不同为1，相同为0

print(a^b)    #     0001 1101 =  29

# ~，按位取反，先取反（0变1，1变0），再减256

print(~a)    #   1100 0111 = 199   199 - 256 = -57

print(~b)    #   1101 1010 = 218   218 - 256 = -38

# <<，左移动，右移一位，就是乘以2，右移两位，就是乘以（2*2）

print(a<<1)  #  0111 0000 = 112

print(a<<2)  #  1110 0000 = 224

# >>，右移动，右移一位，就是除以2，右移两位，就是除以（2*2）

print(b>>1)  #  0001 0010 = 18

print(b>>2)  #  0000 1001 = 9

result = 值1 if 条件 else 值2

#!/usr/bin/env python

# -*- coding:utf-8 -*-

# Author:Hiuhung Wan

x , y = 11 , 13

z = 15 if x > y else 20

print("z =",z)

#等同于下面的语句

if x > y:

    z = 15

else:

    z = 20