Oracle GoldenGate 11g (二)

GoldenGate 11g 单向同步配置 上

Item

Source System

Target System

Platform

RHEL6.4 - 64bit

RHEL6.4 - 64bit

Hostname

rhel64.oracle.com

ora11g.oracle.com

Database

Oracle 11.2.0.3

Oracle 11.2.0.3

Character Set

AL32UTF8

AL32UTF8

ORACLE_SID

PROD

EMREP

Listener Name/Port

LISTENER/1521

LISTENER/1521

Goldengate User

ogg

ogg

1.1Configure Oracle Database for

Goldengate

1.1.1Create Goldengate user

Create user ogg for both source system and

target system, and grant appropriate privileges.

为源库和目标库创建ogg用户并赋予相应权限。

1.1.1.1For Source System(PROD):

创建表空间;创建用户、赋予权限

[oracle@rhel101 ~]$ sqlplus / as sysdba

SYS@PROD>create tablespace tbs_gguser datafile

'/u01/app/oracle/oradata/PROD/gguser.dbf' size 50m

autoextend on;

SYS@PROD>create user ogg identified by ogg default

tablespace tbs_gguser

2  temporary tablespace TEMP quota unlimited on

tbs_gguser;

SYS@PROD>grant connect,resource to ogg;

SYS@PROD>grant alter session to ogg;

SYS@PROD>grant select any table,select any dictionary,alter any table to ogg;

SYS@PROD>grant

flashback any table to ogg;

SYS@PROD>grant

execute on dbms_flashback to ogg;

Create test table for Source System:

为源库创建测试表、插入数据、创建主键约束

SYS@PROD>conn scott/tiger

SCOTT@PROD>create table ggtab as select * from emp;

SCOTT@PROD>alter table ggtab add constraint

pk_ggtab_empno primary key(empno);

SCOTT@PROD>select * from ggtab;

1.1.1.2 For Target System(EMREP):

创建表空间;创建用户、赋予权限

[oracle@rhel102 ~]$ sqlplus / as sysdba

SYS@EMREP>create tablespace tbs_gguser datafile

2  '/u01/app/oracle/oradata/EMREP/gguser.dbf'

size 50m autoextend on;

SYS@EMREP>create user ogg identified by ogg default

tablespace tbs_gguser

2  temporary tablespace TEMP quota unlimited on

tbs_gguser;

SYS@EMREP>grant connect,resource to ogg;

SYS@EMREP>grant alter session to ogg;

SYS@EMREP>grant select any dictionary, select any table

to ogg;

SYS@EMREP>grant

update any table,delete any table,insert any table to ogg;

Create empty test table

SYS@EMREP>conn scott/tiger

SCOTT@EMREP>create table ggtab as select * from emp where

1=2;

SCOTT@EMREP>alter table ggtab add constraint pk_ggtab_empno

primary key(empno);

1.1.2Enable supplemental log mode in source system

Check that supplemental log mode is enabled

by following query:

SYS@PROD>select supplemental_log_data_min from

v$database;

SUPPLEME

--------

NO

If not, enable it:

SYS@PROD>alter database add supplemental log data;

SYS@PROD>alter system switch logfile;

SYS@PROD>select supplemental_log_data_min from

v$database;

1.1.3Enable archive log mode in source system

Enable archive log mode:

[oracle@rhel101 ~]$ mkdir /u01/app/oracle/arch

[oracle@rhel101 ~]$ls -ld /u01/app/oracle/arch

SYS@PROD>alter system set

log_archive_dest_1='location=/u01/app/oracle/arch';

SYS@PROD>shutdown immediate;

SYS@PROD>startup mount;

SYS@PROD>alter database archivelog;

SYS@PROD>alter database open;

SYS@PROD>alter system archive log current;

SYS@PROD>archive log list;

1.1.4Enable force logging mode in source system

Enable force logging mode:           in case of "no

logging" operations

SYS@PROD>alter database

force logging;

SYS@PROD>select force_logging

from v$database;

1.1.5Enable transaction data change capture for test table in Source

system

GGSCI (rhel101.oracle.com) 11> dblogin userid

ogg,password ogg

Successfully logged into database.

GGSCI (rhel101.oracle.com) 12> add trandata scott.ggtab

Logging of supplemental redo data enabled

for table SCOTT.GGTAB.

GGSCI (rhel101.oracle.com) 13> info trandata

scott.ggtab

Logging of supplemental redo log data is

enabled for table SCOTT.GGTAB.

Columns supplementally logged for table

SCOTT.GGTAB: EMPNO.

1.2Configure Goldengate Manager

Process

1.2.1Configure MGR in source system

Create the Manager parameter file.

[oracle@rhel101 11.2.1]$ ggsci

GGSCI (rhel101.oracle.com) 1> edit params mgr

Use the editor to assign a port.此端口号对应 对端的pump配置端口号

PORT 7809

PURGEOLDEXTRACTS ./dirdat,

USECHECKPOINTS

Start the Manager

GGSCI

(rhel101.oracle.com) 2>start mgr

Verify that the Manager has started.

GGSCI

(rhel101.oracle.com) 3>info mgr

Manager

is running (IP port rhel101.oracle.com.7809).

1.2.2Configure MGR in target system

Create the Manager parameter file.

GGSCI (rhel102.oracle.com) 5> edit params mgr

PORT 7809

PURGEOLDEXTRACTS /u01/app/oracle/ggs/11.2.1/dirdat,

USECHECKPOINTS

Start the Manager.

GGSCI (rhel102.oracle.com) 6> start mgr

GGSCI (rhel102.oracle.com) 7> info mgr

Manager is running (IP port

rhel102.oracle.com.7809).

GGSCI (rhel102.oracle.com) 2> start mgr

Verify that the Manager has started.

GGSCI (rhel102.oracle.com) 3> info mgr

Manager is running (IP port rhel102.oracle.com.7809).

1.3Load Initial Data by Direct

Load method

1.3.1Configure Extract process in source system

Add an Extract process called EINI_1:

GGSCI (rhel101.oracle.com) 2> add extract

eini_1,sourceistable

EXTRACT added.

GGSCI (rhel101.oracle.com) 3> info extract

*,tasks

EXTRACT

EINI_1    Initialized   2017-01-05 09:25   Status STOPPED

Checkpoint Lag       Not Available

Log Read Checkpoint  Not Available

First Record         Record 0

Task                 SOURCEISTABLE

Edit EINI_1:

GGSCI (rhel101.oracle.com) 6> edit params eini_1

Add:

-- GoldenGate Initial Data Capture

-- for scott.ggtab

EXTRACT EINI_1

SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

USERID ogg, PASSWORD ogg

RMTHOST rhel102.oracle.com, MGRPORT

7809

RMTTASK REPLICAT, GROUP RINI_1

TABLE scott.ggtab;

For chinese support, we should set

environment variable “NLS_LANG” in Extract/Pump/Replicat process parameters.

1.3.2Configure replicat process in target systemrini_1

Add initial load delivery process

GGSCI (rhel102.oracle.com) 4> add replicat rini_1,specialrun

REPLICAT added

GGSCI (rhel102.oracle.com) 4> info replicat *,tasks

REPLICAT   RINI_1    Initialized   2017-01-05 09:30   Status STOPPED

Checkpoint Lag

00:00:00 (updated 00:00:22 ago)

Log Read Checkpoint

Not Available

Task

SPECIALRUN

Edit initial load delivery process RINI_1:.

GGSCI (rhel102.oracle.com) 6> edit params rini_1

Add:

-- GoldenGate Initial Load Delivery

REPLICAT RINI_1

SETENV

(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

ASSUMETARGETDEFS

USERID ogg, PASSWORD ogg

DISCARDFILE ./dirrpt/RINIaa.dsc,

PURGE

MAP scott.*, TARGET scott.*;

Note: In the MAP statement, the first

owner/schema is for the source and the second for the target.

1.3.3Accomplish Initial Load

Start Initial Load process EINI_1 insource system, then RINI_1 process

in target system will be started automatically:

GGSCI (rhel101.oracle.com) 6> start extract

eini_1

Sending START request to MANAGER ...

EXTRACT EINI_1 starting

GGSCI (rhel101.oracle.com) 7> info extract eini_1

EXTRACT

EINI_1    Initialized   2017-01-05 09:25   Status RUNNING

Checkpoint Lag       Not Available

Log Read Checkpoint  Not Available

First Record         Record 0

Task                 SOURCEISTABLE

1.3.4Verify Initial Load result and process status

GGSCI (rhel101.oracle.com) 11> view report

eini_1

2017-01-05 09:35:06  INFO

OGG-01017  Wildcard resolution

set to IMMEDIATE because SOURCEISTABLE is used.

***********************************************************************

Oracle GoldenGate Capture

for Oracle

Version 11.2.1.0.3 14400833

OGGCORE_11.2.1.0.3_PLATFORMS_120823.1258_FBO

Linux, x64, 64bit (optimized), Oracle 11g on Aug 23 2012 20:32:12

Copyright (C) 1995, 2012, Oracle and/or

its affiliates. All rights reserved.

Starting at 2017-01-05

09:35:06

***********************************************************************

Operating System Version:

Linux

Version #1 SMP Tue Jan 29 11:47:41 EST

2013, Release 2.6.32-358.el6.x86_64

Node: rhel101.oracle.com

Machine: x86_64

soft limit   hard limit

Address Space Size   :

unlimited    unlimited

Heap Size            :    unlimited    unlimited

File Size            :    unlimited    unlimited

CPU Time             :    unlimited    unlimited

Process id: 6727

Description:

***********************************************************************

**            Running with the following parameters                  **

***********************************************************************

2017-01-05 09:35:06  INFO

OGG-03035  Operating system

character set identified as UTF-8. Locale: en_US, LC_ALL:.

EXTRACT EINI_1

SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

Set environment variable

(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

USERID ogg, PASSWORD ***

RMTHOST rhel102.oracle.com, MGRPORT 7809

RMTTASK REPLICAT, GROUP RINI_1

TABLE scott.ggtab;

Using the following key columns for

source table SCOTT.GGTAB: EMPNO.

2017-01-05 09:35:07  INFO

OGG-01815  Virtual Memory

Facilities for: COM

anon alloc: mmap(MAP_ANON)  anon

free: munmap

file alloc: mmap(MAP_SHARED)

file free: munmap

target directories:

/u01/app/oracle/ggs/11.2.1/dirtmp.

CACHEMGR virtual memory values (may have

been adjusted)

CACHESIZE:                               64G

CACHEPAGEOUTSIZE (normal):                8M

PROCESS VM AVAIL FROM OS (min):         128G

CACHESIZEMAX (strict force to disk):     96G

Database Version:

Oracle Database 11g Enterprise Edition

Release 11.2.0.3.0 - 64bit Production

PL/SQL Release 11.2.0.3.0 - Production

CORE

11.2.0.3.0      Production

TNS for Linux: Version 11.2.0.3.0 -

Production

NLSRTL Version 11.2.0.3.0 - Production

Database Language and Character Set:

NLS_LANG         =

"AMERICAN_AMERICA.AL32UTF8"

NLS_LANGUAGE     = "AMERICAN"

NLS_TERRITORY    = "AMERICA"

NLS_CHARACTERSET = "AL32UTF8"

Processing table SCOTT.GGTAB

***********************************************************************

*                   ** Run Time Statistics

**                         *

***********************************************************************

Report at 2017-01-05 09:35:19 (activity

since 2017-01-05 09:35:07)

Output to RINI_1:

From Table SCOTT.GGTAB:

#                   inserts:        14

#

updates:         0

#

deletes:         0

#

discards:         0

REDO Log Statistics

Bytes parsed

0

Bytes output

2588

You can also verify the results in

target system:

GGSCI (rhel102.oracle.com) 11> view report

rini_1

***********************************************************************

Oracle GoldenGate Delivery for

Oracle

Version 11.2.1.0.3 14400833

OGGCORE_11.2.1.0.3_PLATFORMS_120823.1258_FBO

Linux, x64, 64bit (optimized), Oracle 11g on Aug 23 2012 20:37:31

Copyright (C) 1995, 2012, Oracle

and/or its affiliates. All rights reserved.

Starting at 2017-01-05

09:34:48

***********************************************************************

Operating System Version:

Linux

Version #1 SMP Tue Jan 29 11:47:41

EST 2013, Release 2.6.32-358.el6.x86_64

Node: rhel102.oracle.com

Machine: x86_64

soft limit   hard limit

Address Space Size   :

unlimited    unlimited

Heap Size            :    unlimited    unlimited

File Size            :    unlimited    unlimited

CPU Time             :    unlimited    unlimited

Process id: 6466

Description:

***********************************************************************

**            Running with the following

parameters                  **

***********************************************************************

2017-01-05 09:34:53  INFO

OGG-03035  Operating system

character set identified as UTF-8. Locale: en_US, LC_ALL:.

REPLICAT RINI_1

SETENV

(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

Set environment variable

(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

ASSUMETARGETDEFS

USERID ogg, PASSWORD ***

DISCARDFILE ./dirrpt/RINIaa.dsc,

PURGE

MAP scott.*, TARGET scott.*;

2017-01-05 09:34:55  INFO

OGG-01815  Virtual Memory

Facilities for: COM

anon alloc: mmap(MAP_ANON)  anon

free: munmap

file alloc: mmap(MAP_SHARED)

file free: munmap

target directories:

/u01/app/oracle/ggs/11.2.1/dirtmp.

CACHEMGR virtual memory values

(may have been adjusted)

CACHESIZE:                                2G

CACHEPAGEOUTSIZE (normal):                8M

PROCESS VM AVAIL FROM OS

(min):           4G

CACHESIZEMAX (strict force to

disk):   3.41G

Database Version:

Oracle Database 11g Enterprise

Edition Release 11.2.0.3.0 - 64bit Production

PL/SQL Release 11.2.0.3.0 -

Production

CORE    11.2.0.3.0      Production

TNS for Linux: Version 11.2.0.3.0

- Production

NLSRTL Version 11.2.0.3.0 -

Production

Database Language and Character

Set:

NLS_LANG         =

"AMERICAN_AMERICA.AL32UTF8"

NLS_LANGUAGE     = "AMERICAN"

NLS_TERRITORY    = "AMERICA"

NLS_CHARACTERSET =

"AL32UTF8"

***********************************************************************

**                     Run Time Messages                             **

***********************************************************************

Wildcard MAP resolved (entry

scott.*):

MAP "SCOTT"."GGTAB", TARGET

scott."GGTAB";

Using following columns in default

map by name:

EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO

Using the following key columns

for target table SCOTT.GGTAB: EMPNO.

***********************************************************************

*                   ** Run Time Statistics

**                         *

***********************************************************************

Report at 2017-01-05 09:35:05

(activity since 2017-01-05 09:35:00)

From Table SCOTT.GGTAB to

SCOTT.GGTAB:

#                   inserts:        14

#                   updates:         0

#                   deletes:         0

#                  discards:         0

。。。。。。

Check the initial data has been

transferred to Target system:

SCOTT@EMREP>select * from

ggtab;

1.3.5Check process status

After initial load, extract process

EINI_1 and replicat process RINI_1 stop automatically.

Source system:

GGSCI (rhel101.oracle.com) 12> info extract

eini_1

EXTRACT    EINI_1

Last Started 2017-01-05 09:35

Status STOPPED

Checkpoint Lag       Not Available

Log Read Checkpoint  Table SCOTT.GGTAB

2017-01-05 09:35:14  Record 14

Task                 SOURCEISTABLE

Target System:

GGSCI (rhel102.oracle.com) 12> info replicat

rini_1

REPLICAT   RINI_1

Initialized   2017-01-05

09:30   Status STOPPED

Checkpoint Lag       00:00:00 (updated 00:16:12 ago)

Log Read Checkpoint  Not Available

Task                 SPECIALRUN

1.3.6Solution for Error

eini_1

parameter  should put the parent table

first,for example:

EXTRACT EINI_1

SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

USERID ogg, PASSWORD ogg

RMTHOST lvxingaho2, MGRPORT 7809

RMTTASK REPLICAT, GROUP RINI_1

TABLE scott.dept;

TABLE scott.emp;

1.4Configure Extract Process in

Source system

1.4.1Edit extract process parametereora_1

GGSCI (rhel101.oracle.com) 15> edit

params eora_1

Add:

-- Change Capture parameter file to capture ggtbs changes

EXTRACT EORA_1

SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

USERID ogg, PASSWORD ogg

EXTTRAIL ./dirdat/la

TABLE scott.ggtbs;

Please note that “la” is prefix for

local trail file.

GGSCI (rhel101.oracle.com) 69> view params

eora_1

Execute the following commands in

source system to add Primary Extract group.

GGSCI (rhel101.oracle.com) 16> add extract eora_1,tranlog,begin now

EXTRACT added.

1.4.2Define GoldenGate local trail

GGSCI (rhel101.oracle.com) 17> ADD EXTTRAIL ./dirdat/la, EXTRACT EORA_1, MEGABYTES 5

EXTTRAIL added.

1.4.3Start primary Extract process

GGSCI (rhel101.oracle.com) 18> start extract eora_1

Sending START request to MANAGER ...

EXTRACT EORA_1 starting

Verify extract process is running or

not:

GGSCI (rhel101.oracle.com) 19> info extract

eora_1

EXTRACT    EORA_1

Last Started 2017-01-05 10:00   Status

RUNNING

Checkpoint Lag       00:00:00 (updated 00:00:08 ago)

Log Read Checkpoint  Oracle Redo Logs

2017-01-05 10:00:27  Seqno 8, RBA 13643776

SCN 0.1111409 (1111409)

GGSCI (rhel101.oracle.com) 20> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

EXTRACT     RUNNING     EORA_1      00:00:00      00:00:00

Now Goldengate will generate local

tail file “aa000000”under

dirdat in Source system:

[oracle@rhel101 ~]$ ll

/u01/app/oracle/ggs/11.2.1/dirdat/

total 4

-rw-rw-rw- 1 oracle oinstall 1059

Jan  5 10:00 la000000

1.5Configure pump process in Source

system

1.5.1Edit data pump process parameterpora_1

GGSCI (rhel101.oracle.com) 20> edit params pora_1

Add:

-- Data Pump parameter file to read the local trail of scott.ggtbs

changes

EXTRACT PORA_1

SETENV

(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)

PASSTHRU

RMTHOST rhel102.oracle.com, MGRPORT

7809

RMTTRAIL ./dirdat/ra

TABLE scott.ggtab;

Please note that “ra” is prefix for remote

trail file.

Add data pump Extract group

GGSCI (rhel101.oracle.com) 21> add

extract pora_1,exttrailsource ./dirdat/la

EXTRACT added.

Verify results:

GGSCI (rhel101.oracle.com) 26> info extract

pora_1

EXTRACT    PORA_1

Last Started 2017-01-05 10:05

Status STOPED

Checkpoint Lag       00:00:00 (updated 00:01:20 ago)

Log Read Checkpoint  File ./dirdat/la000000

First Record  RBA 0

1.5.2Add GoldenGate remote trail in Source system

GGSCI (rhel101.oracle.com) 24> add rmttrail ./dirdat/ra,extract pora_1,megabytes 5

RMTTRAIL added.

Start data pump process:

GGSCI (rhel101.oracle.com)

25> start

extract pora_1

Sending

START request to MANAGER ...

EXTRACT

PORA_1 starting

GGSCI

(rhel101.oracle.com) 35>info extract pora_1

EXTRACT    PORA_1

Last Started 2017-01-05 10:11

Status RUNNING

Checkpoint

Lag       00:00:00 (updated 00:00:04 ago)

Log Read

Checkpoint  File ./dirdat/la000000

First Record  RBA 1059

GGSCI

(rhel101.oracle.com) 36> info all

Program     Status

Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

EXTRACT     RUNNING

EORA_1      00:00:00      00:00:08

EXTRACT     RUNNING

PORA_1      00:00:00      00:00:06

Now Goldengate will generate remote

tail file “ra000000”under dirdat in Target system:

[oracle@rhel102 ~]$ ll

/u01/app/oracle/ggs/11.2.1/dirdat/

total 0

-rw-rw-rw- 1 oracle oinstall 0

Jan  5 10:11 ra000000

吕星昊

2017年11月20日

oracle 11gogg,【OGG】Oracle GoldenGate 11g (二) GoldenGate 11g 单向同步配置 上相关推荐

  1. oracle人才盘点演示,Oracle 11g Golden Gate DDL单向同步实例演示

    1.指定Source端数据库模式 GGSCI (ogg1) 19> edit params ./GLOBALS ggschema ogg GGSCI (ogg1) 23> stop mgr ...

  2. goldengate for mysql_GoldenGate for mysql to mysql:单向同步

    GoldenGate for mysql to mysql:单向同步 GoldenGate用于在各种企业系统间以亚秒级速度复制和集成事务数据,是同类最佳的.易于部署的产品.GoldenGate 可以灵 ...

  3. OGG|Oracle GoldenGate 基础

    作者 | JiekeXu 来源 |公众号 JiekeXu DBA之路(ID: JiekeXu_IT) 大家好,我是 JiekeXu,很高兴又和大家见面了,今天和大家一起来学习利用 OGG 19c 迁移 ...

  4. OGG|Oracle GoldenGate 微服务架构

    作者 | JiekeXu 来源 |公众号 JiekeXu DBA之路(ID: JiekeXu_IT) 大家好,我是 JiekeXu,很高兴又和大家见面了,今天和大家一起来学习利用 OGG 微服务架构, ...

  5. oracle 单向同步 方案,使用Goldengate 实现Oracle for Oracle 单向数据同步

    实验环境 数据源端:  host1 ip 192.168.199.163 数据目标端: host2 ip 192.168.199.104 要实现数据的同步,Oracle源端必须满足如下设置Oracle ...

  6. oracle数据库gold,Oracle数据库之Oracle GoldenGate 12.2.0.1 安装、升级和删除

    本文主要向大家介绍了Oracle数据库之Oracle GoldenGate 12.2.0.1 安装.升级和删除,通过具体的内容向大家展现,希望对大家学习Oracle数据库有所帮助. 1.准备工作 选择 ...

  7. Oracle GoldenGate Director 12.1.2安装及配置

    一.安装前工作: 1.根据官网建议修改游标数大到2000: SQL> show parameter cursor NAME                     TYPE ---------- ...

  8. goldengate mysql_使用GoldenGate实现MySQL到Oracle的数据实时同步

    step 1: 配置mysql修改配置文件my.ini #for goldengate log-bin = "C:/mysql/logbin/logbin.log" binlog- ...

  9. GoldenGate配置实例:RHEL 4.7下的Oracle 10g RAC到单实例的单向同步(一)

    环境 源端是一个RAC rac1 rac2: RHEL 4u7 + ORACLE 10.2.0.4 + ASM rac1 外网IP 192.168.47.241 虚拟IP 192.168.47.243 ...

最新文章

  1. Python中将pandas的dataframe拷贝到剪切板并保持格式实战:to_clipboard()函数、复制到Excel文件、复制到文本文件(默认是tsv格式)、复制到文本文件(设置逗号分隔符)
  2. 程序员失业第一步?斯坦福研究员用AI从编译器反馈中学习改Bug
  3. Aix oracle 自动启动,AIX如何自动启动和关闭软件的运行
  4. 10-Platform Interrupt Controller API
  5. 40岁的程序员还能找到工作吗_如果程序员已经到三十岁了,那他还能找到满意的工作吗?...
  6. 7006.vue项目之电商项目实战1-环境搭建及后台接口测试
  7. Java自动化测试框架-06 - 来给你的测试报告化个妆整个形 - (下)(详细教程)
  8. 利用iTextSharp把DataTable导出为PDF和RTF(Rich Text Format)文件
  9. Multisim14.0安装教程
  10. arma模型 java_ARMA模型与ARIMA模型java实现例程
  11. 程序设计python_Python程序设计—车万翔
  12. QT二次开发Kvaser
  13. xmake v2.5.9 发布,改进 C++20 模块,并支持 Nim, Keil MDK 和 Unity Build
  14. 不间断:即使被刺破,新的软电子设备也不会损坏
  15. 源码级剖析了 Naive UI 的 Button 完整过程
  16. 公司章程违反了公司法该怎么办
  17. 小白量化彩票实战(6)彩票号码中六保五缩水和旋转矩阵
  18. 58同城南京品牌公馆数据爬取
  19. SaltStack常用模块之file
  20. python信息检索和评价系统_Python爬虫实现的微信公众号文章下载器

热门文章

  1. VMware下配置固定ip,于本机进行通信。
  2. SPOJ HIGH Highways ——Matrix-Tree定理 高斯消元
  3. jenkins自动化构建iOS应用配置过程中遇到的问题
  4. CSS--使用伪选择器制作箭头图标
  5. MySql 自动更新时间为当前时间
  6. C/C++ 如何劫持别人家的命令||函数||程序(只能对于window而言)
  7. linux无法设置变量,linux – crontab在作业之前无法设置变量
  8. 测试nignx php请求并发数,nginx 优化(突破十万并发)
  9. 面试题 10.02. 变位词组
  10. leetcode 1047. 删除字符串中的所有相邻重复项(栈)