ios - 'NSPersistentStore' 类型的值永远不能为零，不允许比较

Question

let managedModel:NSManagedObjectModel = NSManagedObjectModel.mergedModelFromBundles(nil)!


        var storeCoordinator:NSPersistentStoreCoordinator = NSPersistentStoreCoordinator(managedObjectModel: managedModel)

        if storeCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil) != nil{
            if error != nil{
                print(error!.localizedDescription)
                abort()
            }
        }

我如何用最新的 swift2 语法修复它？
谢谢

'NSPersistentStore' 类型的值永远不能为 nil，不允许比较
Call 可以抛出，但它没有标记为 'try' 并且不处理错误

Answer 1

这就是我使用 Swift 2 处理它的方式：

let managedModel:NSManagedObjectModel = NSManagedObjectModel.mergedModelFromBundles(nil)!
var storeCoordinator:NSPersistentStoreCoordinator = NSPersistentStoreCoordinator(managedObjectModel: managedModel)

do {
    try storeCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil)
} catch let error as NSError {
    print(error!.localizedDescription)
    abort()
}