if len(df.columns) != 9:
df[8] = 0
if len(df.columns) != 9:
df[8] = 0
df["H"] = range(0, len(df))
df.iloc[: , 7] = range(0, len(df))
import pandas as pd
df = pd.read_csv("D:/OcData/test/Test1.csv')
print(df.info())
print(df)
python
df[8] = 1
>>> 然後每次有一行新既data
>>> Col8 就會加1
呢個每次有D難明
如果你只係想col 8 係等於你個csv 既長度的一個順序number
你就用
python
df[8] = range(len(df))
df[8] = df.index+5000
range(len(df))
同df.index+5000
冇分別