将pandas的Dataframe对象读写Excel文件

Dataframe对象生成Excel文件 需要xlrd库  命令  pip install xlrd

#导入pandas
import pandas as pd
import numpy as np

#导入SqlAlchemy
from sqlalchemy import create_engine

if __name__ == "__main__":
    #建立数据库引擎
    engine = create_engine('mysql+pymysql://root:mysql@localhost:3306/mymac')
    #写一条sql
    sql = 'select id,name,age,gender from student'
    #建立dataframe
    df = pd.read_sql_query(sql,engine)
    #导入成excel文件  参数为文件名
    df.to_excel('student.xlsx')

 

 Dataframe对象生成读取文件 需要openpyxl库  命令  pip install openpyxl

#导包
import pandas as pd

if __name__ == "__main__":
    #读取数据集
    df = pd.read_excel('test.xlsx','sheet1')
    print(df)

 

转载于:https://www.cnblogs.com/Niuxingyu/p/10506254.html