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对象键 - 如何检查对象键是否具有@ “ String”
原标题:ObjectForKey - How to check if ObjectForKey has @"String"

我有这条线...

 if(![[[array objectAtIndex:indexPath.row] objectForKey:@"special_trip"] isEqualToString:@""]) {

一切正常, 一切都很酷。 但我特别的Trip 有很多信息, 所以我想只举一个例子, 例如在 1 1: Airport, Packet 中, 字符串机场的结果。

我只想拿那些 整条线都包含机场的研究结果

提前感谢。

编辑: 抱歉混淆 。

最佳回答

使用此选项 :

if([myString rangeOfString:@"Airport"].location != NSNotFound ) {
    // myString contains Airport
}
问题回答

我想你正在寻找这个函数

NSArray *filteredArray = [myArray filteredArrayUsingPredicate:predicate];

看看""https:// developmenter.apple.com/library/mac/#documentation/Cocoa/Condefitual/Previcates/arts/pUsing.html" rel=“nofollow” >Presidate progration Guide

如果我说对了... 为什么你不用这条简单的线...

if([[[array objectAtIndex:indexPath.row] objectForKey:@"special_trip"] isEqualToString:@"Airport"])
{
   //
}

如果我错了:-(请告诉我到底有什么问题。)

谢谢!





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