NSMutableString不会附加

问题描述

[string appendString:@\"\"];
((appdelegete *)[UIApplication sharedApplication].delegate).salesReceipt.old = [string ];

我想将我所有的元素添加到要收集其数据的

NSMutableString

字符串中。最好的方法是什么？在我的appdelegate类中有一个

NSMutableString

，我将在其中存储

NSMutableString

中的所有元素     

解决方法

        

NSMutabelString* string = [[NSMutabelString alloc] initWithCapacity:2]
[string appendString:@\"My String \"];
[string appendString:@\"\"];
//Now you need to access your NSMutableArray from Delegate add add the string.
 NSMutableArray* myArray = ((appdelegete *)[UIApplication sharedApplication].delegate).salesReceipt.items ;
[myArray addObject:string];