为什么我的数组搜索 return 0 而不是 1?

Why does my array search return 0 and not 1?

我正在做一个非常简单的 NSArray 搜索,如下所示

BOOL isCashTender = [_tenderRows containsObject: @"Cash"];

数组的调试输出告诉我那里有一个对象 "Cash" 如下所示(它是倒数第二个)

2017-04-07 11:20:27.644551 NWMobileTill[2134:701297] tenderRowsarray:(
"<Tender: 0x17009c2a0> (entity: Tender; id: 0xd0000000002c0004 <x-coredata://BE2CD993-FDED-43CE-99A3-88597A0E8046/Tender/p11> ; data: {\n    amount = 10;\n    authCode = nil;\n    brandId = XX;\n    cardEntryMode = nil;\n    cardType = nil;\n    createdDate = \"2017-04-07T11:20:22+08:00\";\n    createdDateUtc = \"2017-04-07T03:20:22\";\n    currency = EUR;\n    extRefNo = \"Cash-In-EUR\";\n    hashedPan = nil;\n    inOrOut = IN;\n    isSynched = 0;\n    obfPan = nil;\n    orderNumber = \"1-20170407112015\";\n    status = 95;\n    synchDate = nil;\n    synchDateUtc = nil;\n    tillId = 1;\n    type = Cash;\n    userName = a;\n})"
)

但是当我查看我的 BOOL 的调试输出时,它 returns 0 而我预期它是 1,这是为什么?

2017-04-07 11:20:27.644139 NWMobileTill[2134:701297] isCashTender = 0

tenderRows 只包含一个对象,它不是字符串 "Cash";这是一个 Tender 实体。

Tender 实体可能有一个 type 属性,其值为 "Cash",但这不是你问的问题(containsObject:)。