1. =可以将等号右侧的值赋值给等号左侧的变量
a=10print(a)
2.+= a+=5相当于a=a+5
a=10a+=6print(a)
3.-= a-=5相当于a=a-5
a=10a-=6print(a)
4.*= a*=5相当于a=a*5
a=10a*=6print(a)
5.**= a**=5相当于a=a**5
a=10a**=6print(a)
6./= a/=5相当于a=a/5
a=10a/=6print(a)
7.//= a//=5相当于a=a//5
注意:在对浮点数做算术运算时,结果也会返回一个浮点数
a=10a//=6print(a)
8.%= a%=5相当于a=a%5
a=10a%=6print(a)