主要內容：
1、字串通過+號連線（類似java）。
2、printf用法 （類似C語言）字串通過 % 傳值。
3、字串通過$引用(類似PHP）。

package DataStructureAndAlgorithm

/**
  * Created by Administrator on 2017/12/23.
  */

case class BookPrint(name: String, author: String)
object Test1ScalaPrint extends  App{
  val name = "ApacheCN"
  val age  = 1
  val url  = "www.apache.wiki"
 

  val book = new BookPrint("www.baidu.com", "開心果汁")

  println("name=" + name, "age=" + age, "url=" + url, "author=" + book.author)
  printf("name=%s, age=%d, url=%s, author=%s\n", name, age, url, book.author)
  println(s"name=$name, age=$age, url=$url, author=${book.author}")
}

執行結果：

(name=ApacheCN,age=1
 
,url=www.apache.wiki,author=開心果汁)
name=ApacheCN, age=1, url=www.apache.wiki, author=開心果汁
name=ApacheCN, age=1, url=www.apache.wiki, author=開心果汁

Process finished with exit code 0