我正在尝试更改Bool属性并且收到一个EXC_BAD_ACCESS错误.
我正在使用XCode 6和Swift.
note属性保存不错,但已完成的属性会抛出EXC_BAD_ACCESS错误
import Foundation
import CoreData
class Task: NSManagedObject
{
@NSManaged var note: String!
@NSManaged var completed: Bool
}
改变属性程序
// taskObject is an instance of Task()
// Set the completed flag
taskObject.completed = true // EXC_BAD_ACCESS
