Pandas操作Excel列

读与写Excel

df = pd.read_excel('./测试.xlsx')

DataFrame(df).to_excel('example.xlsx', sheet_name='Sheet1', index=False, header=True)

新增列

df['新增列']

data=['a','b','c']
df['新增列']=data

df.insert(loc=0, column='列名', value=data)

遍历修改列值

data = []
for i in range(len(df['列名'])):
    data.append('test_data')
df['列名'] = data