#coding:utf-8

#/usr/bin/python

"""

2018-11-03

dinghanhua

运算符

"""

'''算术运算符 + - * / ** % //'''

num1 = 100

num2 = 300.3

print(num1 + num2) #加

print('hello '+'world '+'!') #字符串连接

print(num1 - num2) #减

print(num1 * num2) #乘

print(num1 / num2) #除

print(310 % num1) #余，求模

print(310/100,310//100.0,310 % 100.0)# //商

print(-310/100,-310//100,-310 % 100) # //商

print(num1**4)  #幂

'''比较运算符 == !=  > >= < <= ,身份运算符is  ,is not'''

print(1 == 1) # ==是否相等

print(1 != '',True != 0 ) # != 是否不等

print(num1 > 2)

print(num1 <= 2)

num3 = 100

print(num1 is num3) #is 变量所指对象是否相同

print(num1 is not num3)

'''逻辑运算符 and or not'''

print(1>0 and True and 'a'=='a ')

print(1>0 or 9<3)

print(not True)

'''赋值运算符 = += -+ *= /= %= //='''

num1,num2,num3=10,2,3

num1,num2 = num2,num1 #数据交换

#(num1,num2) = (num2,num1)

print(num1,num2)

num1 += 10

print(num1)

num1 -= 2

print(num1)

num1 *= 5

print(num1)

num1 /= 2

print(num1)

num1 //= 6

print(num1)

num1 %= 3

print(num1)

'''成员运算符 in ,not in'''

list = [2,3,1]

print(1 in list,5 in list)

print('ab' in 'fwei xabs')

'''三目运算符'''

result = num1 if num1>num2 else num2

print('最大值： ',result)