我有一个playground示例:
import UIKit
var testArray: [[String]] = [["2","2"],["1","1"]]
testArray[0][0] = "3" // Working
func getTestArray() -> [String] {
return testArray[0]
}
var test = getTestArray()[0] = "4" // Error: Immutable Value
我该如何获取testArray的引用以便修改它?
改变test不会改变testArray!