day04_filtter() 和map函数

result=filter(lambda a:a>80,[11,22,33,44,55])
print(list(result))

demo=map(lambda a:a+30,[22,33,44,55])
print(list(demo))
2.

NAME="ALXE"
def show():
s=123
c=123
print(locals())#返回本脚本的所有局部变量
print(globals())#返回所有的全局变量
show()

s="hhhhfsdfsdfsdfsfsfs"
print(hash(s))
s="理解"
print(len(s))#字符方式查看
b="理解"
c=bytes(b,encoding="utf-8")#6个字节
print(len(c))#6个字节
c=bytes(b,encoding="gbk")#gbk 四个字节
print(len(c))

r=max([11,22,33])#求最大
print(r)
r=min([11,22,33,44])#求最小
print(r)
r=sum([11,22,33,44])#求和
print(r)
print(pow(2,10))#指数