基本运算
一、算术运算符
x = 10
y = 20
print(x + y) #30
print(x - y) #-10
print(x * y) #200
print(x / y) #0.5
print(x % y) #10
print(x // y) #0
print(x ** y) #100000000000000000000
二、比较运算符
返回的都是布尔值
x = 10
y = 20
print(x > y) # False
print(x < y) # True
print(x >= y) # False
print(x <= y) # True
print(x == y) # False
print(x != y) # True
三、赋值运算符
x = 10 # (一元赋值运算符)
y = 20
# x = x+y # x += y
x += y # (二元赋值运算符)
x += 10
print(x)
x -= y
print(x)
x *= y
print(x)
x /= y
print(x)
x **= y # x = x**y
print(x)
y //= x # x = x//y
print(y)
x %= y # x = x%y
print(x)
四、逻辑运算符
返回True或False(二元运算符)
## and(和),两个条件都为真就为真,否则都为False
print(1>1 and 2>3) # False
print(10>1 and False) # False
## or(或),只要有一个为真就为真,否则都为False
age = 18
inp_age= input('age:')
print(age==inp_age or True) # True
print(True or False) # True
print(False or False) # False
## not(不是)
print(not True) # False
print(not False) # True
五、身份运算符
x=1000
y=1000
# print(id(x))
# print(id(y))
print(x is y) # False
print(x is not y) # True
print(not x is y)
# 值相同的id不一定相同,id相同的值一定相同
# 补充(仅作了解)
# 运算符优先级(如果你想让他优先算,加括号就行了,没必要记忆优先级)
x = 100
y = 100
print(not x is y) # x is y = True # not True = False
print(not x is y ** 2) # y ** 2 = 10000 # x is y = False # not False = True
print(not ((x is y) ** 2)) # x is y = True # True ** 2 = 1 = True # not True = False
# True为1,False为0
print(True>0) # True
print(False >0) # False
x = 10
y = 10
print(x is y) # True
x = x ** 5 # x = 100000
print(x is y) # False
print(x is y ** 5) # y=100000 # False
x = 100000
y = 100000
print(x is y) # True
标签:10,False,05,python,age,运算符,print,True
From: https://www.cnblogs.com/JunLeewarehouse/p/17683906.html