Scala-1-字符处理

// s插值
val s = s"a = $a, b = $b"
val s = s"a = ${a*2}, b = ${b*3}"

// 顶格 及 插值
val s1: String =

s"""

   |select
   |*
   |from
   |where
   |date='$date'
   |yes
   |good
 """.stripMargin

 // 转字符串

123 + “”

123.toString