python-基础语法-list、array、set、tuple转换

list、array、set、tuple转换方式：

list转array	a1 = np.array(l1)		array转list	l1 = a1.tolist()
list转set	s1 = set(l1)		set转list	l1 = list(s1)
list转tuple	t1 = tuple(l1)		tupel转list	l1 = list(t1)
array转set	s1 = set(a1)		set转array	a1 = np.array(s1)
array转tuple	t1 = tuple(a1)		tuple转array	a1 = np.array(t)
set转tuple	t1 = tuple(s1)		tuple转set	s1 = set(t1)

import numpy as np

a1 = np.arange(0,10,1)
print(type(a1))
#result:<class 'numpy.ndarray'>

l1 = a1.tolist()
print(type(l1))
# <class 'list'>

a1 = np.array(l1)
print(type(a1))
#result:<class 'numpy.ndarray'>

s1 = set(l1)
print(type(s1))
#result:<class 'set'>

l1 = list(s1)
print(type(l1))
#result:<class 'list'>

s1 = set(a1)
print(type(s1))
#result:<class 'set'>

a1 = np.array(s1)
print(type(a1))
#result:<class 'numpy.ndarray'>