Python-基本运算符

# 1. 算术运算
print(10 / 3)
print(10 // 3)
print(10 ** 2)

# 2. 赋值运算
# 增量赋值
age=18
age+=1#age=age + 1
print(age)

age=18
age/=3 #age=age/3
print(type(age))

age**=2 #age=age**2

# 交叉赋值
x=10
y=20

temp=x
x=y
y=temp
x,y=y,x
print(x,y)

# 链式赋值
x=10
y=x
z=y
x=y=z=10

print(id(x))
print(id(y))
print(id(z))


# 解压赋值
l=[1.2,2.2,3.3,4.4,5.5]
a=l[0]
b=l[1]
c=l[2]
d=l[3]
e=l[4]

a,b,c,d,e=l
a,b,c,d,e,f=l
a,b,c,d=l

print(a,b,c,d,e)

l=[1.2,2.2,3.3,4.4,5.5]
a,b,*_=l
print(a,b)

a,*_,b=l
print(a,b)

*_,a,b=l
print(a,b)