<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[dianji4575的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/dianji4575</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; dianji4575]]></copyright><item><title><![CDATA[Mysql基本操作]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600628</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600628</guid><author>dianji4575</author><pubDate>Wed, 24 Jan 2018 10:39:00 +0800</pubDate><description><![CDATA[Mysql基本操作
输入mysql -u root -p登陆，会要求你输入密码，第一次登陆没有密码，按回车即可
show databases； 打印数据库里有多少个数据库
use mysql； 进入数据库
show tables; 查看table
desc user； 查看表的结构
show columns form user; 查看数据库
create database ...]]></description><category></category></item><item><title><![CDATA[mysql与mongodb]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600631</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600631</guid><author>dianji4575</author><pubDate>Wed, 24 Jan 2018 10:13:00 +0800</pubDate><description><![CDATA[作用


MySQL


MongoDB




服务器守护进程


mysqld


mongod




新建用户并授权


grant all on *.*to username@'localhost'identified by 'passwd';






db.addUser("user...]]></description><category></category></item><item><title><![CDATA[MongoDB入门]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600626</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600626</guid><author>dianji4575</author><pubDate>Mon, 22 Jan 2018 11:37:00 +0800</pubDate><description><![CDATA[概念
MongoDB是面向文档的数据库，不是关系型数据库。放弃关系模型的主要原因就是为了获得更加方便的扩展性。
基本思路就是将原来“行”的概念换成更加灵活的“文档”模型。面向文档的一条记录就可以表示非常复杂的层次关系方式可以将文档或者数组内嵌进来，所以用一条记录就可以表示非常复杂的层次关系。
功能
索引，存储JavaScript,聚合，固定集合，文件存储
文档
文档是Mong...]]></description><category></category></item><item><title><![CDATA[两种方法实现Python二分查找算法]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600627</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600627</guid><author>dianji4575</author><pubDate>Thu, 04 Jan 2018 15:12:00 +0800</pubDate><description><![CDATA[一.

arr=[1,3,6,9,10,20,30]
def findnumber(l,h,number):
    mid=(l+h)//2
    if arr[mid]==number:
        print("找到了"+str(mid))
    elif arr[mid]&lt;number:
        l = mid
        return...]]></description><category></category></item><item><title><![CDATA[flask_关注者]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600623</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600623</guid><author>dianji4575</author><pubDate>Mon, 28 Aug 2017 13:17:00 +0800</pubDate><description><![CDATA[表的模型实现

class Follow(db.Model):
    __tablename__ = 'follows'
    follower_id = db.Column(db.Integer,db.ForeignKey('users.id'),
                            primary_key=True)
    followed_id...]]></description><category></category></item><item><title><![CDATA[flask-博客文章]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600624</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600624</guid><author>dianji4575</author><pubDate>Fri, 25 Aug 2017 22:52:00 +0800</pubDate><description><![CDATA[提交和显示博客文章
文章模型

class Post(db.Model):
    __tablename__ = 'posts'
    id = db.Column(db.Integer, primary_key=True)
    body = db.Column(db.Text)
    timestamp = db.Column(db.DateTime, ind...]]></description><category></category></item><item><title><![CDATA[flask-用户资料]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600621</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600621</guid><author>dianji4575</author><pubDate>Fri, 25 Aug 2017 18:45:00 +0800</pubDate><description><![CDATA[首先创建User模型

class User(UserMixin,db.Model):
    __tablename__ = 'users'　　#..
    name = db.Column(db.String(64))
    location = db.Column(db.String(64))
    about_me = db.Column(db.Text())...]]></description><category></category></item><item><title><![CDATA[Flask-用户角色及权限]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600622</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600622</guid><author>dianji4575</author><pubDate>Fri, 25 Aug 2017 10:32:00 +0800</pubDate><description><![CDATA[app/models.py

class Role(db.Model):
    __tablename__ = 'roles'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(64), unique=True)
    default = db.Column(db...]]></description><category></category></item><item><title><![CDATA[flask-mail（qq邮箱）]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600618</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600618</guid><author>dianji4575</author><pubDate>Wed, 23 Aug 2017 14:29:00 +0800</pubDate><description><![CDATA[from flask_mail import Mail,Message

app.config['MAIL_SERVER']='smtp.qq.com'
app.config['MAIL_PORT'] = 587
app.config['MAIL_USE_TLS'] = True
app.config['MAIL_USERNAME'] = os.environ.get('MAI...]]></description><category></category></item><item><title><![CDATA[Flask-web开发]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600615</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600615</guid><author>dianji4575</author><pubDate>Sun, 23 Jul 2017 16:28:00 +0800</pubDate><description><![CDATA[使用虚拟环境
虚拟环境使用第三方实用工具virtualenv创建。输入一下命令可以检查系统是否安装了virtualenv

virtualenv --version


如果显示错误，你就需要安装这个工具。发行版
大多数Linux发行版都提供了virtualenv包。例如，Ubantu用户可以使用下述命令安装它:

sudo apt-gett install pytho...]]></description><category></category></item><item><title><![CDATA[Git常用的基本操作]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600715</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600715</guid><author>dianji4575</author><pubDate>Sun, 18 Jun 2017 18:08:00 +0800</pubDate><description><![CDATA[一.如何学习git指令
1.查看帮助：git help2.查看指定命令：git help clone3.搜索关键字：/chone 4.退出帮助文档：输入Q
二.常见命令
1.初始化git本地仓库：先进入目标文件夹然后输入git init2.创建文件：touch car.h3.查看文件状态：git status   查看最新改动：git diff 文件名4.添加到git暂缓区：git...]]></description><category></category></item><item><title><![CDATA[Mysql基本操作]]></title><link>https://blog.youkuaiyun.com/dianji4575/article/details/101600714</link><guid>https://blog.youkuaiyun.com/dianji4575/article/details/101600714</guid><author>dianji4575</author><pubDate>Tue, 13 Jun 2017 17:28:00 +0800</pubDate><description><![CDATA[输入mysql -u root -p登陆，会要求你输入密码，第一次登陆没有密码，按回车即可
show databases； 打印数据库里有多少个数据库
use mysql； 进入数据库
show tables; 查看table
desc user； 查看表的结构show columns form user; 查看数据库 create database lscdb; 创建数据库 s...]]></description><category></category></item></channel></rss>