TointegrateGolangserviceswithexistingPythoninfrastructure,useRESTAPIsorgRPCforinter-servicecommunication,allowingGoandPythonappstointeractseamlesslythroughstandardizedprotocols.1.UseRESTAPIs(viaframeworkslikeGininGoandFlaskinPython)orgRPC(withProtoco

Golangofferssuperiorperformance,nativeconcurrencyviagoroutines,andefficientresourceusage,makingitidealforhigh-traffic,low-latencyAPIs;2.Python,whileslowerduetointerpretationandtheGIL,provideseasierdevelopment,arichecosystem,andisbettersuitedforI/O-bo

To write a Dockerfile for basic Golang applications, you need to understand three core steps: selecting a suitable image, building an application, and packaging the operating environment. 1. Use multi-stage construction to reduce volume. In the first stage, use golang:1.21 image to compile and generate executable files. In the second stage, only copy the compilation results and run them. 2. Set CGO_ENABLED=0 to avoid C library dependencies, unify the working directory such as /app and use the COPY instruction to copy the code. It is recommended to cooperate with .dockerignore to exclude irrelevant files; 3. Specify specific Go versions such as golang:1.21 instead of latest to ensure the controllable version and improve CI/CD consistency and compatibility.

Yes, multiple Go versions can be installed on the same machine. It can be easily implemented using version management tools such as gvm or goenv. Gvm supports package collections, which are suitable for cross-environment testing, while goenv is similar to rbenv and is easy to operate. After installation, version switching is performed through commands such as gvmininstallgo1.20 and gvmusego1.20, and the default version is set. If you do not use the tools, you can manually install different versions to separate directories and switch by modifying the PATH environment variables, such as configuring the shell alias go120 and go121 to quickly switch. Regardless of the method, you should confirm the current version through government and check the Go binary path in the IDE to

TogetenvironmentvariablesinGo,useos.Getenv(),butconsiderLookupEnvforexistencechecks.1.Useos.Getenv("VAR_NAME")toretrieveavariable’svalueasastring,returningemptyifunset.2.Useos.LookupEnv()todistinguishbetweenunsetandemptyvariables.3.Provided

GousessignificantlylessmemorythanPythonwhenrunningwebservicesduetolanguagedesignandconcurrencymodeldifferences.1.Go'sgoroutinesarelightweightwithminimalstackoverhead,allowingefficienthandlingofthousandsofconnections.2.Itsgarbagecollectorisoptimizedfo

ToimplementaworkerpoolinGo,usegoroutinesandchannels.1.Definejobandresultstructstorepresenttasksandtheiroutcomes.2.Createafixednumberofworkersasgoroutinesthatprocessjobsfromasharedchannel.3.Sendjobstothejobchannelandcollectresultsfromtheresultchannel,

sync.WaitGroup is used to wait for a group of goroutines to complete the task. Its core is to work together through three methods: Add, Done, and Wait. 1.Add(n) Set the number of goroutines to wait; 2.Done() is called at the end of each goroutine, and the count is reduced by one; 3.Wait() blocks the main coroutine until all tasks are completed. When using it, please note: Add should be called outside the goroutine, avoid duplicate Wait, and be sure to ensure that Don is called. It is recommended to use it with defer. It is common in concurrent crawling of web pages, batch data processing and other scenarios, and can effectively control the concurrency process.