列表元素取出求助

Twilight6

2228294101 发表于 2022-5-17 20:52
sn = [['1230','1'],['1230','2'],['1230','3'],['2345','1'],['2345','2'],['2345','3']]
unit = []
u ...

你这代码不对呀，你就举例子 什么样才是你想要的结果吧

2228294101

Twilight6 发表于 2022-5-17 20:57
你这代码不对呀，你就举例子 什么样才是你想要的结果吧

输出 = [['1230','1'],['1230','2'],['2345','1'],['2345','2'],['1111','1'],['1111','2'],['2222','1'],['2222','2'],['6547','1'],['6547','2'],['9852','1'],['9852','2']]

Twilight6

2228294101 发表于 2022-5-17 21:15
输出 = [['1230','1'],['1230','2'],['2345','1'],['2345','2'],['1111','1'],['1111','2'],['2222','1' ...

1. sn = [['1230','1'],['1230','2'],['1230','3'],['1230','4'],
   
2.       ['2345','1'],['2345','2'],['2345','3'],['1111','1'],
   
3.       ['1111','2'],['1111','3'],['1111','4'],['1111','5'],
   
4.       ['2222','1'],['2222','2'],['2222','3'],['6547','1'],
   
5.       ['6547','2'],['6547','3'],['9852','1'],['9852','2']]
   
6. 
   
7. tn = []
   
8. for x in sn:
   
9.     if len(x[0]) == 4 and (x[1] == '1' or x[1] == '2'):
   
10.         tn.append(x)
    
11. print(tn)

复制代码

2228294101

Twilight6 发表于 2022-5-17 21:21

这几个元素不是特定的值，，我只是用来形容一下。

Twilight6

2228294101 发表于 2022-5-17 21:39
这几个元素不是特定的值，，我只是用来形容一下。

只能说你目的和需求描述的太模糊了，没办法

看看有没其他大佬能理解，说实话我到现在都不知道你的需求到底是啥

qq1151985918

1. sn = [['1230','1'],['1230','2'],['1230','3'],['1230','4'],['2345','1'],['2345','2'],['2345','3'],['1111','1'],['1111','2'],['1111','3'],['1111','4'],['1111','5'],['2222','1'],['2222','2'],['2222','3'],['6547','1'],['6547','2'],['6547','3'],['9852','1'],['9852','2']]
   
2. 
   
3. data = {}
   
4. for i in sn:
   
5.     if i[0] not in data:
   
6.         data[i[0]] = [i]
   
7.     else:
   
8.         data[i[0]].append(i)
   
9. 
   
10. for x in data:
    
11.     s = ','.join([y[-1] for y in data[x]])
    
12.     print(f'{x}相同,提取复制{s}')
    

复制代码

2228294101

Twilight6 发表于 2022-5-17 21:43
只能说你目的和需求描述的太模糊了，没办法

看看有没其他大佬能理解，说实话我到现在都不知道你的 ...

在这个例子是输出是这样，就是我要输出每个前面元素一样的，['xxxx','n'],前面的xxxx，跟后面的n，都不是特指某一个或者某一串数字，然后我要列表的每个不同的‘xxxx’ 的前两个数组这样能懂吗

xfmiao

import pandas as pd
sn=[['1230','1'],['1230','2'],['1230','3'],['1230','4'],['2345','1'],['2345','2'],['2345','3'],['1111','1'],['1111','2'],
    ['1111','3'],['1111','4'],['1111','5'],['2222','1'],['2222','2'],['2222','3'],['6547','1'],['6547','2'],['6547','3'],['9852','1'],['9852','2']]
aa=pd.DataFrame(sn)
print (aa[ (aa[1] == '2' ) | (aa[1] == '1' ) ])

2228294101

Twilight6 发表于 2022-5-17 21:43
只能说你目的和需求描述的太模糊了，没办法

看看有没其他大佬能理解，说实话我到现在都不知道你的 ...

>>> sn = [['1230','1'],['1230','2'],['1230','3'],['1230','4'],['2345','1'],['2345','2'],['2345','3'],['1111','1'],['1111','2'],['1111','3'],['1111','4'],['1111','5'],['2222','1'],['2222','2'],['2222','3'],['6547','1'],['6547','2'],['6547','3'],['9852','1'],['9852','2']]
>>> unit = []
>>> unit2=[]
>>> s = 0
>>> z = []
>>> for i in sn:
...     n = i[1]
...     unit.append(i[0])
...     while i[0] not in unit:
...         unit.append(i[0])
...         break
...
>>> for x in unit:
...     for y in sn:
...         while s >= 3:
...             if [y[0]] == z:
...                 s = s+1
...             elif [y[0]] != z:
...                 s = 0
...             break
...         while x == y[0] and s < 2:
...             unit2.append(y)
...             z = [y[0]]
...             break
...         s =s+ 1
...
>>> print(unit2)
[['1230', '1'], ['1230', '2'], ['1230', '1'], ['1230', '1'], ['1230', '1'], ['2345', '1'], ['2345', '2'], ['1111', '1'], ['1111', '2'], ['2222', '1'], ['2222', '2'], ['6547', '1'], ['6547', '2'], ['9852', '1'], ['9852', '2']]


我解决了哥！！！

2228294101

>>> sn = [['1230','1'],['1230','2'],['1230','3'],['1230','4'],['2345','1'],['2345','2'],['2345','3'],['1111','1'],['1111','2'],['1111','3'],['1111','4'],['1111','5'],['2222','1'],['2222','2'],['2222','3'],['6547','1'],['6547','2'],['6547','3'],['9852','1'],['9852','2']]
>>> unit = []
>>> unit2=[]
>>> s = 0
>>> z = []
>>> for i in sn:
...     n = i[1]
...     unit.append(i[0])
...     while i[0] not in unit:
...         unit.append(i[0])
...         break
...
>>> for x in unit:
...     for y in sn:
...         while s >= 3:
...             if [y[0]] == z:
...                 s = s+1
...             elif [y[0]] != z:
...                 s = 0
...             break
...         while x == y[0] and s < 2:
...             unit2.append(y)
...             z = [y[0]]
...             break
...         s =s+ 1
...
>>> print(unit2)
[['1230', '1'], ['1230', '2'], ['1230', '1'], ['1230', '1'], ['1230', '1'], ['2345', '1'], ['2345', '2'], ['1111', '1'], ['1111', '2'], ['2222', '1'], ['2222', '2'], ['6547', '1'], ['6547', '2'], ['9852', '1'], ['9852', '2']]

问题已解决 ，麻烦各位了！

xfmiao

5行代码就可以了，不用来回循环。。。。
import pandas as pd
import numpy as np
sn=[['1230','1'],['1230','2'],['1230','3'],['1230','4'],['2345','1'],['2345','2'],['2345','3'],['1111','1'],['1111','2'],['1111','3'],['1111','4'],['1111','5'],['2222','1'],['2222','2'],['2222','3'],['6547','1'],['6547','2'],['6547','3'],['9852','1'],['9852','2']]
aa=pd.DataFrame(sn)
print (np.array(aa[ (aa[1] == '2' ) | (aa[1] == '1' ) ]).tolist())