获取dictionary指定关键字的值
数据如下，我想不循环获取 names= app,app1,app2这种。应该怎么实现？
(
{
date = "12/12/12";
name = app;
},
{
date = "11/02/12";
name = app1;
},
{
date = "14/05/12";
name = app2;
}
)
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NSString *str=[[array1 valueForKeyPath:@"name"] componentsJoinedByString:@","]; NSLog(@"desired string:%@",str); NSMutableDictionary *dict = [[NSMutableDictionary alloc]init]; [dict setObject:@"app" forKey:@"name"]; NSMutableDictionary *dict1 = [[NSMutableDictionary alloc]init]; [dict1 setObject:@"app1" forKey:@"name"]; NSMutableDictionary *dict2 = [[NSMutableDictionary alloc]init]; [dict2 setObject:@"app2" forKey:@"name"]; NSArray *array1 = [[NSArray alloc]initWithObjects:dict,dict1,dict2, nil]; NSString *str=[[array1 valueForKeyPath:@"name"] componentsJoinedByString:@","]; NSLog(@"desired string:%@",str); O/P:- app,app1,app22019-07-17 19:05:25赞同 展开评论
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