ios - ow safe is StringByAppendingString used in this way?

Question

I am using Cocos2d 2.0 with ARC and that's my code:

hudAndPlayerFileName = @"hud";        
//...other code
hudAndPlayerFileName = [hudAndPlayerFileName stringByAppendingString:@"ST"];

I am wondering whether appending a string to another string will cause any memory leak or if, ARC, will deal with this. Is there anything in this code that may lead to leaks?

Answer 1

您使用字符串常量@"hud"作为输入，返回值是一个自动释放的实例。

您hudAndPlayerFileName可以使用NSMutableString.

[hudAndPlayerFileName appendString:@"ST"];

这将在包含的字符串末尾附加“ST”hudAndPlayerFileName