问题描述
我创建了一个Swift Playground来测试一些nspredicate东西。但是它没有运行。这是代码:
import Foundation
class Person: NSObject {
let name: String
let age: Int
let married: Bool
init(name: String,age: Int,married: Bool) {
self.name = name
self.age = age
self.married = married
}
}
let p1 = Person(name: "Person 1",age: 32,married: true)
let p2 = Person(name: "Person 2",age: 61,married: true)
let p3 = Person(name: "Person 3",age: 45,married: false)
let ppl: NSArray = [p1,p2,p3]
let filter_name1 = nspredicate(format: "name = 'Person 1'")
ppl.filtered(using: filter_name1)
运行时出现错误(最后一行):
error: Execution was interrupted,reason: signal SIGABRT.
在游乐场的日志中,我看到:
libc++abi.dylib: terminating with uncaught exception of type NSException
我无法弄清楚这里出了什么问题。
解决方法
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