python习题，关于逻辑和比较运算符练习

开始练习前要知道的是：比较运算符、逻辑运算符之间的优先级
结果是：比较运算符>not>and>or

一些小知识点:
not False

结果为:True

a and b

只要a,b中有一个值为False,结果为False
只有a,b同为True,结果才为True

a or b

• 只要a,b中有一个值为Ture,结果就为True
• 只有a,b同为False,结果才为False

题目1

• 1.1 1 > 1 or 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6

• 1.2 not 2 > 1 and 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6

# 1.1 结果:True
print(1 > 1 or 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6)

# 1.2 结果:False
print(not 2 > 1 and 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6)

题解1.2
为了便于让大家知道过程求解一题的详解过程:
not 2 > 1 and 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6
首先我们从左至右开始，按照not and or 和比较运算符的优先级开始!
先解优先级最高的：比较运算符
即是：not Ture and Ture or False and True and True or False
然后是：not
False and Ture or False and True and True or False
然后是：and
False or False or False
最后结果是：Fasle

题目2

• 2.1 8 or 3 and 4 or 2 and 0 or 9 and 7

• 2.2 0 or 2 and 3 and 4 or 6 and 0 or 3

# 2.1 结果:8
print(8 or 3 and 4 or 2 and 0 or 9 and 7)

# 2.2 结果:4
print(0 or 2 and 3 and 4 or 6 and 0 or 3)

题目3

• 3.1 6 or 2 > 1

• 3.2 3 or 2 > 1

• 3.3 0 or 5 < 4

• 3.4 5 < 4 or 3

• 3.5 2 > 1 or 6

• 3.6 3 and 2 > 1

• 3.7 0 and 3 > 1

• 3.8 2 > 1 and 3

• 3.9 3 > 1 and 0

• 3.10 3 > 1 and 2 or 2 < 3 and 3 and 4 or 3 > 2

# 3.1 结果:6
print(6 or 2 > 1)
# 3.2 结果:3
print(3 or 2 > 1)
# 3.3 结果:False
print(0 or 5 < 4)
# 3.4 结果:3
print(5 < 4 or 3)
# 3.5 结果:True
print(2 > 1 or 6)
# 3.6 结果:True
print(3 and 2 > 1)
# 3.7 结果:0
print(0 and 3 > 1)
# 3.8 结果:3
print(2 > 1 and 3)
# 3.9 结果:0
print(3 > 1 and 0)
# 3.10 结果:2
print(3 > 1 and 2 or 2 < 3 and 3 and 4 or 3 > 2)