NSMutableArray里。对象值未被替换

Question

我有一个NSMutableArray，我想更改特定对象的值。

然而，它并没有改变。

以下是我的代码：

//create two array to store data later
NSMutableArray *feelingsArray = [[NSMutableArray alloc] init];


// get paths from root direcory

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);

// get documents path

NSString *documentsPath = [paths objectAtIndex:0];

// get the path to our Data/plist file

NSString *feelingsPath = [documentsPath stringByAppendingPathComponent:@"Feeling.plist"];



//This copies objects of plist to array if there is one
[feelingsArray addObjectsFromArray:[NSArray arrayWithContentsOfFile:feelingsPath]];

//replace object at particular location
[datesArray replaceObjectAtIndex:number withObject:feeling.text];

我是否需要进行任何更改或添加一些代码，例如同步等。

请提供一些指导。

Answer 1

应该不是

[datesArray replaceObjectAtIndex:number withObject:feeling.text];

是

[feelingsArray replaceObjectAtIndex:number withObject:feeling.text];