原创 mysql主從配置
(1) 、準備兩臺主機，主服務器my.cnf配置log-bin=master-bin.log ，server-id=1 ,從服務器server-id=1，級聯要多加log-slave-updates=1。 (2) ,在主庫上，授權一個複製使
2019-09-09 13:34:46
原创 linux腳本實戰
1、獲取隨機字符串或數字獲取隨機8位字符串：方法1：# echo $RANDOM |md5sum |cut -c 1-8 471b94f2方法2：# openssl rand -base64 4 vg3BEg==方法3：# cat /pro
2019-08-29 13:37:28
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原创 ansible
1.配置yum源：上傳epel.repo yum clean all yum update安裝ansible查詢是否有ansible yum list *ansile查看該ansible的信息 yum info ansible.no
2019-08-24 13:38:52
原创 lv磁盤擴展
對新硬盤操作fdisk /dev/sdb 命令(輸入 m 獲取幫助)：nPartition type: p primary (1 primary, 0 extended, 3 free) e extendedSelect
2019-03-23 13:28:28
原创 sqlalchemy_外鍵連接表
import sqlalchemyfrom sqlalchemy import create_engine #連接數據庫from sqlalchemy.ext.declarative import declarative_base #orm
2019-03-15 13:27:57
原创 sqlalchemy連表
from sqlalchemy.ext.declarative import declarative_basefrom sqlalchemy import Column,Integer,String,ForeignKey,UniqueCon
2019-03-15 13:27:57
原创 sqlalchemy增刪改查
import sqlalchemyfrom sqlalchemy import create_engine #連接數據庫from sqlalchemy.ext.declarative import declarative_base #orm
2019-03-15 13:27:56
原创 連接mysql
pip install pymysqlimport pymysqlconn=pymysql.connect(host='192.168.0.6',port=3306,user='root',password='123456',db='old
2019-03-11 13:20:31
原创 主鍵,外鍵與索引
create table class(id int not null primary key,name char(16));設置id爲主鍵create table student2(id int(11) not null,name char
2019-03-10 13:18:45
原创 redis操作
import redisr=redis.Redis(host="192.168.0.6",port=6379)r.set('foo','bar')print(r.get('foo'))r.sadd("jihe","1","2","2","3
2019-03-07 13:20:26
原创 redis安裝和配置
1、首先上官網下載Redis 壓縮包# wget http://download.redis.io/releases/redis-5.0.3.tar.gz# tar xzf redis-5.0.3.tar.gz# cd redis-5.0.
2019-03-03 13:14:35
原创 rabbitmq_有選擇發送接收_消息過濾
生產者_procedure_send_有選擇的發消息import pika import sys connection = pika.BlockingConnection(pika.ConnectionParameters( ho
2019-03-03 13:14:35
原创 rabbitmq_消息持久化_消息公平分發_消息廣播
生產者_procudure_send_消息持久化 import pika connection = pika.BlockingConnection(pika.ConnectionParameters( 'localhost'))
2019-03-01 13:15:13
原创 三級菜單
data={"北京":{"昌平":{"沙河":["old boy","test"],"天通苑":["鏈家地產","我愛我家"]},\ "朝陽":{"望京":["奔馳","默默"],"國貿":["CICC","HP"],
2019-02-23 13:19:41
原创 購物車程序
product_list=[("iPhone XS Max 256G",11000),('MacBook Pro 512G',19000),('Bike',800),("Apple Watch Series 4",3500),("Coffe
2019-02-23 13:19:41