#4.2
a = 1
b = 2
print(a>b)
print(a<b)
print(a<=b)
print(1.0 == 1)
print(1.0 != 1)
a = 'Hello'
b = 'Hello'
print(a == b)
a = 'World'
print(a>b)
a = []
b = [2,1]
print(a>b)#元素类型不兼容会出现TypeError
a = ['2']
print(a>b)

#4.3
a = 1
b = 0
def f1():
  print('--进入函数f1--')
  return True
print((a > b) or f1())
print((a < b) or f1())
print((a < b) and f1())
print((a > b) and f1())

#4.4
a = 0b10110010
b = 0b01011110
print(a | b)
print(a & b)
print(a ^ b)
print(a >> 2)
print(~a)
print(a << 2)
c = -20
print(~c)

#4.5
a = 1
b = 2
a+=b
print(a)
a += b + 3
print(a)
a -= b
print(a)
a *= b
print(a)
a /= b
print(a)
a %= b
print(a)
a = 0b10110010
b = 0b01011110
a |= b
print(a)
a ^= b
print(a)

#4.6
rint(1 - 2 * 2)
a = 0b10110010
b = 0b01011110
c = 0b11
print(a | b & c)
print(b & c)
print(a | 2)
print(a | b)
print(254 & c)
print(a)
print(0b11111110)

#4.7
x =3.5
y =4.6
z =5.7
a = x>y or x > z
b = x != y
c = z > y+x
d =x < y and not(x>z)
print(a)
print(b)
print(c)
print(d)
print('ops')
a = 0b10100>>4 ==1
b = 0b10100>>4 ==2
c = 0b0000101<<2 == 20
d = 0b0000101<<2 == 10
print(a)
print(b)
print(c)
print(d)
print(16>>2)
print(16/2**2)
print(16*4)
print(16<<2)

#4.8
a = 1
print(a)
print(-a)
print(1+1)
print(2-1)
print(2*3)
print(3/2)
print(3//2)
print(3**2)
print(3%2)
print(-3//2)
print(10*2)
print(10.2+10)
print(1.0+True+1)
print(5//6)
print(5%6)