python自动化2021/03/10运算符

#算数运算符
#+ - * / //(整除) %(取余)  **次方
#赋值运算符 += *= /= -= %= **= //=
x = 10
#版本1
temp = x+2
x = temp
print(x)

#版本2
x = x+2

#版本3
x+=2 #x = x+2
print(x)


#比较运算符 > < >= <= == !=
#is  判断两个值的内存地址是否一致
a = 10
b = a
print(a == b)
print(a is b)

#逻辑运算符and or not
print(3 < 5 and 5 == 5)
print(3 == 5 or 5 == 5)
print(not True or 5 == 5)