# a=bool(None)
# print(a)

class Foo:
    def __repr__(self):
        return ‘bbbbbbb‘
f = Foo()
ret = ascii(f)
print(ret)

b=bin(10)
print(b)
#字符串轉換字節
c=bytearray(‘小胖‘,encoding=‘utf-8‘)
print(c)
#ord chr 字母和數字轉換
d=ord(‘a‘)
print(d)

f=chr(97)
print(f)
#隨機數
import random

print(random.random())
print(random.randint(1,99))
li=[‘alex‘,‘xiaopang‘,‘goupang‘]
for i,item in enumerate(li,1):print(i,item)
#把數據傳入到數據庫
e=eval(‘6*8‘)
print(e)
#用map列表裏都加100
l1 = [11, 22, 33, 44]
#
# def func(x):
#     return x + 100
#     new_l1 = map(func, l1)
#
#     l = list(new_l1)
#     print(l)

# for i in new_l1:
#     print(i)

#filter過濾

def func(x):
    if x > 33:
        return True
    else:
        return False
g = list(filter(func,[11,22,33,44,55])) #轉換成list列表
print(g)
#十進制
‘‘‘hex(100)
#八進制
oct(100)‘‘‘
#區間
i = range(0,10)
for a in i:
    print(a)

#round 四舍五入
round(8.9)

#super父類方法，通過子類調用父類方法
super()
#zip兩個數據結組
x = [1,2,3]
y = [4,5,6]
zipped=zip(x,y)
list(zipped)
[(1,4),(2,5),(3,6)]
 

python內置函數0-1