python划分数列，生成新的数列，作为value值放入字典

#把一个数列进行划分，划分出来的结果生成另外几个数列，再把生成的每个数列座位字典里面的value
#第一种实现方法：
vv = {}
v1 = []
v2 = []
#for 变量  该变量就是 in里面的值
number_list = [12,5,3,4,9,7,54,26,18,14,13]
for i in number_list:           # for i in range(11)
    if i > 7:                   # if number[i] > 7:
        print(i)                # print(number[i])
        v1.append(i)            # v1.append(number[i])
        vv['k1'] = v1
    else:
        print(i)                # print(number[i])
        v2.append(i)            # v2.append(number[i])
        vv['k2'] = v2

print(vv['k1'])
print(vv['k2'])
print(vv.keys())
print(vv.values())
print('*'*16)


#第二种实现方法：
#先不定义新数列，先进行判刑是否有数列没有，没有就把带有 初值的数列
# 赋给vv['k1']/vv['k2']，使得这两个变成新的数列，之后再用append方法在数列中增加值
vv = {}
number_list = [12,5,3,4,9,7,54,26,18,14,13]
for k in number_list:
    if  k > 7:
        if  'k1' in vv.keys():
            vv['k1'].append(k)
        else:
            vv['k1'] = [k, ]
    else:
        if  'k2' in  vv.keys():
            vv['k2'].append(k)
        else:
            vv['k2'] = [k, ]

print(vv['k1'])
print(vv['k2'])
print(vv.keys())
print(vv.values())

#第三种方法，用默认字典提前申明好values值是一个数列，
在后面分类好的number添加到数列时直接可以用append方法加入到value数列中
import collections
from collections import defaultdict
dic = defaultdict(list)
number_list = [12,5,3,4,9,7,54,26,18,14,13]
for j in number_list:
    if j > 7:
        dic['k1'].append(j)
    else:
        dic['k2'].append(j)
print(dic['k1'])
print(dic['k2'])
print(dic)