var 關鍵字允許聲明多個變量，通過逗號分隔。每個變量有一個有效的標識符（第5章），可選的可以有一個值分配，跟在賦值操作符 = 之后。變量也可以有一個顯式的類型標記。 > The var keyword allows declaring multiple variables, separated by comma ,. Each variable has a valid identi?er (5) and optionally a value assignment following the assignment operator =. Variables can also have an explicit type-hint. ~~~ var a; // declare local a var b:Int; // declare variable b of type Int // declare variable c, initialized to value 1 var c = 1; // declare variable d and variable e // initialized to value 2 var d,e = 2; ~~~ 局部變量的作用于行為在塊（第5.1節）中描述。 > The scoping behavior of local variables is described in Blocks (Section 5.1).