Python built-in functions

1. All ([-1, 0, 1]) #判断是否全是不等于0的数

2. Any ([ -1,0,1]) # has a number not 0 returns true any ([]) return False

3.ascii ([1, 2, ' Open plug ']) #进行ascii conversion

4.bin (1) #十进制转换为二进制

5.bool (1) #判断是否为真

6. A = bytes (' abcde ', encoding = ' utf-8 ') #abcde code is UTF-8 encoded into byte form

7.

b = ByteArray (' abcde ', encoding = ' utf-8 ') #可以进行修改的字节形式

Print (b[1])

B[1] = 100
Print (b)

8.def Sayhi ():p

Callable (Sayhi) # represents a function that can be accessed

9. chr (98) # Convert the number to ASCII

10.ord (' d ') # convert ASCII to Digital

11.code = ' For I in Range ':p rint (i) '

EXEC (code) # converts letters into executable code

12.dir View Internal methods

13.divmod (5, 2) #相除返回余数

14.calc = lambda n:print (n)

Calc (5)

Res =filter (lambda n:n>5, range) #过滤器

res = [Lambda n:n*2 for N in range (10)]

For I in Res:

Print (i)

Reduce

Import Functools

res = Functools.reduce (lambda x,y:x+y, Range (1, 10))

Print (RES)

16.frozenset ([1, 2, 3, 4, 5]) #变成不可变列表

17.globals () #整个程序的变量

Hash (' Alex ') #生成一个特有数学编号

Hex (255) #转化为16进制

20.locals ()

def test ():

A = 333

Print (Locals ()) #找到局部程序的变量

Test ()

Oct (8) #转换成8进制

22.pow (3, 5) # How many Times Square

Repr # converted to a string

c = 1

Repr (c)

24.reversed () inversion

25.round (1.3333, 2) #四舍五入 Reserve Two-bit natural number

Slice #切片

D = Range (20)

D[slice (2, 5)]

27.sorted ()

A = {6:2, 8:0, 1:4, -5:6, 99:11, 4:22}

Print (sorted (A.items (), key = Lambda x:x[1]) # Sorted by value ()

28.zip generated zipper one by one corresponding

A = [1, 2, 3, 4, 5, 6]

b = [' A ', ' B ', ' C ', ' d ']

H = Zip (A, B)

For i in H:

Print (i)

Python built-in functions