比较 < <= == != > >=(比较的是值)
a,b=20,32
print("a
lst1=[11,22,33,44]
lst2=[11,22,33,44]
print(lst1==lst2)#说明值相同
print(id(lst1))
print(id(lst2))
print(lst1 is lst2 )#s说明id不同
print(lst1 is not lst2 )#s说明id不同
布尔and
#and 都为真 才是真
a,b=1,2
print(a==1 and b==2)#true true =true
print(a==1 and b<2)#true false =false
print(a!=1 and b<2)#false false =false
print(a!=1 and b==2)#false true =false
布尔 or
#or 只有一个为真就行
a,b=1,2
print(a==1 or b==2)#true true =true
print(a==1 or b<2)#true false =true
print(a!=1 or b<2)#false false =false
print(a!=1 or b==2)#false true =true
#not bool取反
a=True
print(not a)
in not in
#是不是在字符串内部
a="sdgjxnal"
print("w" in a)
print("s" in a)
print("y" not in a)
