python中导出数据到execl

Posted 2021-11-29 skyxiuli

# 1、写一个函数，随便输入一个表名，把这个表里面所有的数据，导出到excel里面

# 1、‘select * from %s‘ ,查出这个表所有的数据
# 2、再把所有的数据写到excel  xlwt

import pymysql, hashlib, xlwt


def op_mysql(sql: str):
    mysql_info = {
        ‘host‘: ‘***.24.3.40‘,
        ‘port‘: 3306,
        ‘password‘: ‘****‘,
        ‘user‘: ‘jxz‘,
        ‘db‘: ‘jxz‘,
        ‘charset‘: ‘utf8‘,
        ‘autocommit‘: True
    }
    result = ‘执行完成‘
    conn = pymysql.connect(**mysql_info)
    # cur = conn.cursor(pymysql.cursors.DictCursor) #建立游标
    cur = conn.cursor()  # 建立游标
    cur.execute(sql)
    field = [t[0] for t in cur.description]  # 获取表里面的所有字段名
    if sql.strip().lower().startswith(‘select‘):
        # result  = cur.fetchone()
        result = cur.fetchall()
    cur.close()
    conn.close()
    print(‘所有的字段‘, field)
    print(‘所有的数据‘, result)
    result = list(result)  # 因为返回的是元组，不能修改，所以转成list
    result.insert(0, field)  # 加入到最前面
    return result


def export_excel(table_name):
    sql = ‘select * from %s;‘ % table_name
    result = op_mysql(sql)
    book = xlwt.Workbook()
    sheet = book.add_sheet(‘sheet‘)
    for row, line in enumerate(result):
        for col, t in enumerate(line):
            sheet.write(row, col, t)
    book.save(‘%s.xls‘ % table_name)


export_excel(‘CJ_test‘)
export_excel(‘app_myuser‘)

import xlwt

book = xlwt.Workbook()
sheet = book.add_sheet(‘sheet‘)
# # sheet.write(0,0,‘xxx‘)
#
# #nhy_user  id ,username,passwd,error_count
#
l = [
    [1, ‘dsk‘, ‘xxdfsdfsd‘, 0],
    [2, ‘ldd‘, ‘xxdfsdfsd‘, 0],
    [3, ‘lsdd‘, ‘xxdfsdfsd‘, 0],
    [4, ‘lsd1‘, ‘xxdfsdfsd‘, 0],
]

# row = 0#行号
# for line in l: #外面这个循环，每循环一次，就写excel里面一行
#     # col = 0#列号   [1,‘dsk‘,‘xxdfsdfsd‘,0]
#     col = 0
#     for t in line:#里面这个循环是控制列的，每循环一次就写一列
#         sheet.write(row,col,t)
#         col+=1
#     row+=1
#

for row, line in enumerate(l):
    for col, t in enumerate(line):
        sheet.write(row, col, t)

book.save(‘user.xls‘)