Python运算符

算术运算符

+  -  *  /  %  **  //  
判断某个东西是否在某个东西里面包含
in   not in 

逻辑运算符

and   or   not

比较运算符

==   >   <   >=   <=  !=  

布尔值

True  False

乘方 **

num = 9 ** 2
print(num)       #  81

求数 /

num = 9 / 2
print(num)       #  4.5

求商 //

num = 9 // 2
print(num)       #  4

in

name = "Hello"
if "H" in name:
    print("ok")
else:
    print("not ok")    #  ok