swift 使用enumerate（）访问数组元素的索引和值

Posted 2021-05-19

//To get the index of a value when using a 'for-in' loop use enumerate() or enumerated() (Swift 3.0)
let anArray = [5, 1, 2, 3]
for (index, value) in anArray.enumerate() {
  print("Value at index: \(index), is \(value)") //Value at index: 0, is 5
}