我必须创建一个用于存储strUserValue的计算属性，并将其发送到Web服务。将strUserValue发送到服务时，我遇到userValue.getter错误。我已附上以下代码片段：

class Networking:NSObject 
{
private var strUserValue = String()
    var userValue: String {
        get {
            if strUserValue != "" {
                return strUserValue
            }
            else {
                if let token = StrongBoxController.sharedInstance.keychainStore.unarchive(objectForKey: "userValue") as? Data {
                    strUserValue = StrongBoxController.sharedInstance.convertDataToString(value: token)
                    return strUserValue
                }
                else {
                    return ""
                }
            }
        }
        set {
            strUserValue = ""
            StrongBoxController.sharedInstance.saveValues(value: "\(newValue)",key: “userValue”)
        }
    }
}

  

>>崩溃：Networking.userValue.getter

     

malloc：***对象0x281983090的错误：指针未释放   已分配

     

崩溃：com.apple.root.background-qos 0 libsystem_kernel.dylib
  0x1c39caefc __pthread_kill + 8 1 libsystem_pthread.dylib
  0x1c38ead10 pthread_kill + 196