诗与浪子-CSDN博客

from math import ceilnum1 = 1000256321.00num2 = 1000256321num3 = '1,000,256,321.00'def comma_join_number(n): if isinstance(n, (int, float)): number_str = str(round(n, 2)) prefix = number_str.split('.')[0] suffix = number_

2022-05-16 16:31:46 103

原创【Docker】概念

docker网络类型bridge（使用默认网关通信，容器拥有自己的IP）host（类似于虚拟机中的桥接模式）none容器之间的通信默认网关通信（docker0）自定网关通信

2022-05-11 18:11:33 221

原创 python实现对象字典

class ObjectDict(object): def __init__(self, d): self.__d__ = d def __setattr__(self, key, value): if key == '__d__': return super.__setattr__(self, key, value) self.__d__.__setitem__(key, value) def __get

2022-05-10 23:20:35 431

原创实现通过点访问字典的值

class ObjectDict(dict): def __getattr__(self, item): val = self.__getitem__(item) if isinstance(val, dict): return self.__class__(**val) elif isinstance(val, list): return [self.__class__(**d) for d in v

2022-05-10 09:25:19 162

原创常用软件安装

Linux环境安装pythonmysqlpostgresredismongodbDocker环境安装pythonmysqlpostgresredismongodb

2022-04-29 16:28:50 1557

原创 Linux安装Python

1.安装依赖包yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel xz-devel libffi-devel2.下载python压缩包wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz3.解压python压缩包tar -zxvf Python-3.8

2022-04-29 16:11:28 105

原创 mysql创建数据库并设置编码和校验集

create database mydb default character set utf8 collate utf8_general_ci;

2022-04-22 10:41:14 1246

原创 Linux安装docker-compose

1.下载docker-composecurl -L https://github.com/docker/compose/releases/download/1.23.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose2.添加可执行权限chmod +x /usr/local/bin/docker-compose3.建立软连接ln -s /usr/local/bin/docker-compose /us

2022-04-22 09:45:15 1102

原创 Linux安装docker

1.安装yum工具yum install -y yum-utils2.配置docker仓库yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo3.安装docker相关组件yum install -y docker-ce docker-ce-cli containerd.io4.启动dockersystemctl start docker5.开机

2022-04-20 18:25:55 537

原创【Python】动态路由生成算法

# 菜单对象列表menus = [ {'id': 1, 'parent_id':0, 'children': []}, {'id': 2, 'parent_id':1, 'children': []}, {'id': 3, 'parent_id':1, 'children': []}, {'id': 4, 'parent_id':2, 'children': []}, {'id': 5, 'parent_id':2, 'children': []},]# 循环

2022-04-16 22:41:40 948

原创【Linux命令】lsof

网络lsof -ilsof -i tcp:6379lsof -i udplsof -i -s tcp:listenlsof -i -s tcp:establishedlsof 文件名进程lsof -c 进程名进程号lsof -p 进程号目录lsof -d

2022-04-06 11:37:31 958

原创【Django】QuerySet方法

1.查询allnonegetfirst lastearliest latestfilter excludevalues values_listcount existsaggregate annotateorder_byselect_related prefetch_relatedextra2.更新updatedbulk_update3.删除delete4.增加createbulk_createFieldexactiexactcontain

2022-04-02 11:13:16 669

原创增加Swap分区文件大小

1.初始化swapfiledd if=/dev/zero of=/root/swapfile bs=1M count=10242.格式化swapfilemkswap /root/swapfile3.启用swapfileswapon /root/swapfile4.查看swapfile的UUIDblkid /root/swapfile5.在/etc/fstab文件中添加自动挂载UUID=9cd51184-e1dc-4620-a33d-e2654017fa22 swap swap de

2022-04-01 11:46:47 352

原创【Python】SnowAPI

import threadingfrom urllib.parse import urlparse, parse_qsclass Request: def __init__(self, content): self.content = content self.environ = self.content.decode() self.environ_lines = self.environ.split('\r\n') self

2022-03-31 17:55:09 751

原创【Django】配置Redis缓存

1.安装 django-redispip install django-redis2.配置 settings.pyCACHES = { 'default':{ 'BACKEND': 'django_redis.cache.RedisCache', 'LOCATION': 'redis://49.235.115.109:6379', 'OPTIONS': { "CLIENT_CLASS": "django_redis.cl

2022-03-30 10:39:02 558

原创查看MySQL命令执行日志

1.开启日志记录mysql> set global general_log=on;2.查看日志文件状态和路径mysql> show variables like "%general_log%";+------------------+---------------------------------+| Variable_name | Value |+------------------+------------------

2022-03-29 14:13:41 2846

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