python操作mysql數據-執行語句返回值直接返回字典類型

fetchall()將結果放在二維數組里面，每一行的結果在元組里面

import pymysql
def export(table_name):
    conn =pymysql.connect(host = '118.24.3.40',
                          user = 'jxz',password='123456',
                          db='jxz',port=3306,charset = 'utf8')
    cur = conn.cursor()
    cur.execute('select * from %s'%table_name)
    print(cur.fetchall())
export('app_student')

想返回字典格式，只需要在建立游標的時候加個參數，cursor=pymysql.cursors.DictCursor。這樣每行返回的值放在字典里面，然后整體放在一個list里面。

import pymysql
def export(table_name):
    conn =pymysql.connect(host = '118.24.3.40',
                          user = 'jxz',password='123456',
                          db='jxz',port=3306,charset = 'utf8')
    cur = conn.cursor(cursor=pymysql.cursors.DictCursor)
    cur.execute('select * from %s'%table_name)
    print(cur.fetchall())
export('app_student')