c-language - Related information

• How to understand the use of C language define and typedef?

  definition of common data types em > -sharpdefine U8 uint8_t -sharpdefine U16 uint16_t -sharpdefine U32 uint32_t typedef unsigned char uint8_t; typedef unsigned short uint16_t; typedef unsigned long uint32_t; based on the...

  Embedded c-language single-chip c

  Mar.11,2021
• The java transaction rollback project is dubbo+zookeeper

  2018-08-21 18:00:07,107 [DubboServerHandler-ip.ip.ip.ip:20880-thread-195] DEBUG [com.mal.mapper.TbVipReceiveFlowMapper.selectTodayReceiveCardCount] - ==> Parameters: 2018-08-21(String), c5d6dc274bef447988cd467457009d87(String) 2018-08-21 18:00:07,109 ...

  Java

  Apr.22,2021
• After mysql initializes the installation locally, use mysql-u root-p to report an error

  Local mysql has been initialized. If you don t know how to handle this, ask for advice. ...

  Mysql

  Dec.20,2021
• Element-ui input box rules check. When you do not enter blur, the check information pops up, and the input box becomes unavailable for input. How to remove the check information?

  element-ui input box rules check. When you do not enter blur, the check information pops up, and the input box becomes unavailable for input. How to remove the check information ...

  Element-ui

  May.04,2021
• The value from the vue parent component, select the DOM element as the key name of the child component $refs, and print $refs [incoming value] to display undefined

  The requirement for is: an address list, click the letter in the alphabet on the right, and the list jumps to the corresponding initials section. The structure of the component is an alphabetical component in the root component, and there is a dynam...

  Javascript vue.js

  Jun.03,2021
• Sql query data, how to query the data cout? every hour of the day

  ladies and gentlemen, created_time stores string types in my database. How to query the amount of data per hour during the day? how to write this sql? ...

  Mysql

  Feb.09,2022