How to manage dependencies in SBT framework

The SBT framework is a tool for the construction of the SCALA project, which can help developers manage the dependence of projects.In SBT, we can use simple configuration to define the dependent items required by the project, and SBT will automatically process the download and management of dependencies. SBT uses Maven -based dependency management system, so we can define our dependencies in the construction configuration file of the project.In the build.sbt file, we can use the "librarydependencies" keyword to define the dependent library required by the project.For example: scala libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.9" % "test" The above code indicates that we want to add a dependency item called "Scalaton", with a version of 3.2.9, and this dependency item will only be used during testing. In addition to defining dependencies directly in the Build.sbt file, we can also create a file named "plugins.sbt" to manage the plug -in dependencies of the project.In this way, we can distinguish the dependencies of the plug -in to the dependency item of the ordinary library to make the project structure clearer. In addition, SBT also provides a command called "Update" to help us view the update of all dependencies in the project.By running the "Update" command, we can understand which dependencies are outdated and which version can be updated. In short, through simple configuration and command, the SBT framework can easily manage the dependence of the project, so that developers focus more on the management of the project rather than dependent items.