as shown in this page
如本页所示
[self setValue:[NSNumber numberWithInt:intValue] forKey:@"myObject.value"];
The answer was that "of course, it's a key path not a single key", What does that mean?
答案是“当然，这是一条关键路径，而不是一把钥匙”，这是什么意思？
1 个解决方案
#1
10
A key is a string that identifies a property of an object. A key path is a list of keys separated by dots, used to identify a nested property.
键是一个标识对象属性的字符串。键路径是由点分隔的键列表，用于标识嵌套属性。
Here's an example. If an object person has a property address, which itself has a property town you could get the town value in two steps using keys:
这是一个例子。如果一个对象人有一个属性地址，它本身就有一个属性城镇，你可以使用键分两步获得城镇价值：
id address = [person valueForKey:@"address"];
id town = [address valueForKey:@"town"];
or in one step using a keyPath:
或者使用keyPath一步完成：
id town = [person valueForKeyPath:@"address.town"];
Have a look at Apple's docs on Key-Value Coding for further details.
有关更多详细信息，请查看Apple关于键值编码的文档。
#1
10
A key is a string that identifies a property of an object. A key path is a list of keys separated by dots, used to identify a nested property.
键是一个标识对象属性的字符串。键路径是由点分隔的键列表，用于标识嵌套属性。
Here's an example. If an object person has a property address, which itself has a property town you could get the town value in two steps using keys:
这是一个例子。如果一个对象人有一个属性地址，它本身就有一个属性城镇，你可以使用键分两步获得城镇价值：
id address = [person valueForKey:@"address"];
id town = [address valueForKey:@"town"];
or in one step using a keyPath:
或者使用keyPath一步完成：
id town = [person valueForKeyPath:@"address.town"];
Have a look at Apple's docs on Key-Value Coding for further details.
有关更多详细信息，请查看Apple关于键值编码的文档。