Download Java 8 or later version from the official website.Then set system environment variabls

    variable: JAVA_HOME
    value:    C:\Program Files\Java\jdk1.8.0_144 (Java Installation folder)
    variable: Path
    value:    %JAVA_HOME%\bin

Run command window, input java -version, check if it is installed successfully.

Download Scala from the website and install. Then set system environment variables.
    
    variable: Path
    value:    C:\Program Files (x86)\scala\bin (Scala Installation folder)
    
Run command window, input scala, check if the result is the version number of scala.

Download spark from  https://spark.apache.org/downloads.html  into a certain folder and extract.For example, D:\Spark\spark-2.2.0-bin-hadoop2.7. Then set system environmental variables:
    variable: Path
    value:    D:\Spark\spark-2.2.0-bin-hadoop2.7\bin
Run command window, cd to the folder 'D:\Spark\spark-2.2.0-bin-hadoop2.7\bin', then input spark-shell, check.