python django 原生sql 获取数据

node2:/django/mysite/blog#cat views.py1,# -*- coding: utf-8 -*-from __future__ import unicode_literals# from django.shortcuts import render, render_to_responsefrom .models import *# Create your views here.from django.http import HttpResponsefrom django.template import loaderimport MySQLdbdef query():    conn= MySQLdb.connect(        host='localhost',        port = 3306,        user='root',        passwd='1234567',        db ='tlcb',        )    cur = conn.cursor()    a=cur.execute("select title,body, DATE_FORMAT(timestamp,'%Y~%m~%d %k.%i.%s') A from blog_blogpost")    info = cur.fetchall()    return info    cur.close()    conn.close()def archive(req):  print 'aaaaaaaaaaaaaaaaaaaaaaaaaaa'  print req  print type(req)  print req.GET  print '#############################'  print req.GET['aa']  print req.GET['cc']  print '#############################'  print 'aaaaaaaaaaaaaaaaaaaaaaaaaaa'# get all blogpost objects  posts =query()   print posts  print type(posts)  #print blog_list  template = loader.get_template('archive.html')  context = {  'posts':posts  }  print '------------------------------------------'  print  HttpResponse(template.render(context, req))  print '------------------------------------------'  return HttpResponse(template.render(context, req))node2:/django/mysite/blog#node2:/django/mysite/blog/templates#vi archive.htmlnode2:/django/mysite/blog/templates#node2:/django/mysite/blog/templates#node2:/django/mysite/blog/templates#node2:/django/mysite/blog/templates#cat archive.html{% extends "base.html" %}  {% block content %}      {% for post in posts %}      <h2>{{  post.0 }}</h2>      <p>{{ post.1 | date:"1,F jS"}}</p>      <p>{{ post.2 }}</p>      {% endfor %}  {% endblock %}(('dd', 'ddd', '2017~11~24 8.31.42'), ('66666666', '66666', '2017~11~24 8.35.25'), ('777777777', '77777777777', '2017~11~27 1.46.15'))<type 'tuple'>  在自定义 model 方法和模块级方法里,你可以自由的执行自定义SQL语句. 对象 django.db.connection 表示当前的数据库连接. 调用connection.cursor() 得到一个游标对象. 然后调用 cursor.execute(sql, [params])``以执行 SQL 语句, 使用 ``cursor.fetchone() 或cursor.fetchall() 得到结果集. 下面是一个例子:def my_custom_sql(self):     from django.db import connection     cursor = connection.cursor()     cursor.execute("SELECT foo FROM bar WHERE baz = %s", [self.baz])     row = cursor.fetchone()     return row         如果你的SQL语句改变了数据库中的数据 -- 比如你使用了 DELETE 或 UPDATE 语句. 你需要调用 connection.commit() 来使你的修改生效.例子:def my_custom_sql2(self):     from django.db import connection     cursor = connection.cursor()     cursor.execute("DELETE FROM bar WHERE baz = %s", [self.baz])     connection.commit()