Readers
IO package specified IO. The reader interface, which represents reading from the end of the data stream.The Go standard library contains many implementations of this interface, including files, network connections, compression, encryption,
The go language introduces a standard model for error handling, the error interface, which is defined as follows:
Type Error Interface {
Error () string
}
For most functions, if you want to return an error, you can generally define it as the
The Go standard library contains a large number of packages, providing a wide range of functional features. This provides an overview that is simply selective and very simple. The content of the standard library may continue to grow after this
One. Command Base 1. Go run:Used to run command source files (e.g. go run helloworld.go)Only one command source file and several library source files can be accepted as file parametersIts internal operation steps:(1) Compile the source file before
In the go language, the bottom string is stored in a byte array and cannot be changed.
For example, the s:="Go编程" fmt.Println(len(s)) output should be 8 because the Chinese characters are stored in 3 bytes.
len(string(rune('编')))The result is 3.
1, the base image selection
1.1. Container of compiled language (take Golang as an example)
#①构建简单,包含编译是的所有运行环境,但体积大FROM golang:onbuildEXPOSE 8080#②构建复杂, 需执行编译动作,体积小FROM golang:alpineWORKDIR /appADD . /appRUN cd /app && go build -o goappEXPOSE 8080
Eight o ' clock in the morning, on the subway to work, I habitually open the work to view. A stranger asked to add me as a friend, out of a headhunter's intuition (another job seeker), and I immediately passed his request. He sent a message as soon
Golang is a language that is particularly unsuitable for application-layer reliable protocol development. All the reliable protocols depend on the connection state, in the context of concurrency, all the state depends on the event, all the events
ReproducedGo basic Learning Record-write Web application-readjust project directory structure (ii)The previous article organized a part of the file structure, this time again will be the remaining part of the processing, in fact a small part,
The
Introduced
With tutorials, you can learn and practice building your own web framework using Golang.For REST API Development learning is more helpful.
Martini has quickly become the most popular Golang web framework since its release, but it is not
-I don't use keywords
I don't have to Goto.Goto makes code execution logic difficult to read and understand.You can also use label tags to organize your codefunc main() {outer: for { log.Println("outer") for {
Reprint to: https://studygolang.com/articles/9072
In any language, dependency management is a more complex issue. The dependency management mechanism in the go language is still a bit disappointing. Before the 1.6 version, the official only put the
Here is a special example:
package mainimport "fmt"type wenbin struct { name string number int}type wenbinstruct struct { *wenbin}func(wb *wenbin) testFunc(){ fmt.Println("wenbintestjklsd")}func main(){ fmt.Println("wenbin")
Background
Line of business activities, each new activity is to do independent project development, there is a lot of duplication of code, and waste Data Services connection resources; Sort service may want to add business code frequently, is
This is a graduation design to do a small project, to achieve a use of QQ robot control Arduino switch lights of the Internet of things applications, the paper design considerations in a variety of situations, using a lot of things, but also
Rebatebot Rebate Robot
Project Address
Project description
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Rebate robot, based on the establishment of the robot channel and the user through chat to quickly generate a rebate link
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This is the 16th chapter of Golang Language Learning Tutorial
A pointer is a variable that stores the memory address of a variable.
For example, if the value of the variable is, the b 156 b address in memory is, 0x1040a124 and a the variable stores
Redis uses the process of querying a certain type of key number of problems, the simpler way to operate through the REDIS-CLI combined with keys, because the work mechanism of keys is generally disabled on the line, the following shell script
Code Warehouse Address
First, IntroductionProtobuf is a platform-independent, language-independent, extensible serialized structured data format from Google. So
it is suitable for the data exchange format which is used for data storage and
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