swift向方法传数组参数的语法

func calculateStatistics(scores:[Int]) -> (min:Int,max:Int,sum:Int) {
var min = scores[0]
var max = scores[0]
var sum = 0

for score in scores {
if score>max {
max=score
}
else if score<min{
min=score
}
sum += score
}
return (min,max,sum)
}
let a=calculateStatistics([5,3,100,3,9])
print(a.min)
print(a.sum)
print(a.0)

最主要的是这句：func calculateStatistics(scores:[Int]) -> (min:Int,max:Int,sum:Int) {}