#join拼接
result = ".".join(["zhao","xiao","bo","googd"]

)
print(result)



#split 分割
s = "zhao,xiao,bo,googd"
result2 = s.split(".")
print(result2)

#
print("zxb".islower(),"ABC".isupper())


n4 = 5 % 3
print(n4)

print(1>2)
print(1<2)
n7=1000+100
print(n7)

#逻辑运算符and or  not
print(2>1 and 99>100)
print(2>1 and  100>90)
print(2>1 or 1000<1)
print(not 2>1)
#成员运算符
print("z"in "zhao","x"in "xiao","b"not in "zhao")
#身份运算符

today = "周四"
if today == "周一" or today == "周日":
    print("休息，玩会游戏")

elif today == "周三":
    print("唱歌")
else:
    print("学习")
#三目运算符
sc = 99
a = "玩吃鸡"if sc>90 else "学习"
print(a)