我有一个想要随着列表的扩展而扩展的DataFrame。
df['IPS'] = pd.Series(ip)
df[date] = pd.Series(countfreq(re.findall( r'[0-9]+(?:\.[0-9]+){3}', str(
print (df)
列表ip会展开，但设置列时不会显示新元素。它保持与第一次传入（19）相同的长度
0 127.15.20.191 2
1 64.255.65.13 2
2 175.248.78.182 2
3 37.83.22.114 1
4 33.68.135.110 2
5 101.124.127.56 2
6 236.32.91.121 2
7 207.229.230.76 2
8 90.16.136.130 2
9 64.199.43.58 2
10 127.15.20.191 2
11 64.255.65.13 2
12 175.248.78.182 2
13 33.68.135.110 2
14 101.124.127.56 2
15 236.32.91.121 2
16 207.229.230.76 2
17 90.16.136.130 2
18 64.199.43.58 2
例如，如果列表的长度更改为20
0 127.15.20.191 2
1 64.255.65.13 2
2 175.248.78.182 2
3 37.83.22.114 1
4 33.68.135.110 2
5 101.124.127.56 2
6 236.32.91.121 2
7 207.229.230.76 2
8 90.16.136.130 2
9 64.199.43.58 2
10 127.15.20.191 2
11 64.255.65.13 2
12 175.248.78.182 2
13 33.68.135.110 2
14 101.124.127.56 2
15 236.32.91.121 2
16 207.229.230.76 2
17 90.16.136.130 2
18 64.199.43.58 2
19 64.210.89.88 1