执行被中断，原因：信号 SIGABRT。带字典的二维数组-swift

Question

var sectionArray:[[String:Any]] = [ ["sectionName":"Time Cards To Approve","sectionData": [["fname":"true detective","date":"may 20"],["fname":"abbas","date":"may 10"]],"expanaded":false], ["sectionName":"Message Log","sectionData":[["movie":"true detective","event":"Bring food","date":"May 19"],["movie":"false detective","event":"no shoot today","date":"may 20"]],"expanaded":false] ]

我想在尝试下面的代码时获取 fname，它显示类似 **error: Execution was interrupted, reason: signal SIGABRT 的错误。进程一直停留在被中断的地方，使用"thread return -x" to return 到表达式求值前的状态。 **

let ni = sectionArray[0]
let mi = ni["sectionData"] as! [String:String]
let sh = mi["fname"]

Answer 1

你不能施放ni["sectionData"] as! [String:String] 因为它不是 [String:String] 的数组，你不应该使用 !.

试试这个：

if let mi = ni["sectionData"] as? [[String:String]] {
    print("---> mi: \(mi) ")

    let sh1 = mi[0]["fname"]
    let sh2 = mi[1]["fname"]

    print("---> sh1: \(sh1) \n")
    print("---> sh2: \(sh2) \n")
}

你当然也可以使用for循环，比如：

if let mi = ni["sectionData"] as? [[String:String]] {
    for i in mi.indices {
        print("---> sh: \(mi[i]["fname"]) ")
    }
}

执行被中断，原因：信号 SIGABRT。带字典的二维数组-swift

Execution was interrupted, reason: signal SIGABRT. 2D Array with dictionary-swift

arrays

dictionary

ios

swift