我正在使用以下<编码>NSPredicate搜索一系列的习俗物品:
NSPredicate *query = [NSPredicate predicateWithFormat:@"[%K contains[cd] %@", column, searchString];
这些阵列中包含有若干变数的习俗类别(栏具体指明了应当搜索的类别)。 但是,对于<代码>NSStrings的变量而言,有些变量是ints 或doubles,而这一代码在试图分类时坠毁。 是否有任何办法列出<代码>int或doubles?
This works great for the variables that are NSStrings, however, there are some that are ints or doubles, and this code crashes when it trys to sort these.
填表的代码。
坠毁后。
了解你是如何试图对照阵列来评估上游的。
如果对(1)的答复是,你正在把ts/双ble直接放在阵列中,那就赢得了工作;他们必须成为目标。 如果对(2)的答复是发给NSNumber/NSValue级的未经承认的选任人,那么你需要将标号改为“密码>[cd]。
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