如何将NSString值转换为NSMutableData？ 货币字符

Question

How do I convert an NSString currency character value to NSMutableData?

NSString* str = @"€120";
[mutableData appendData:[str dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]];

Print mutableData and out ?120 change the character € for the character ?

How can I add this character?

Answer 1

The problem is that € is not an ASCII character, as it did not exist at the time the ASCII charset was defined, so you can't use NSASCIIStringEncoding to encode it. If you use a more modern string encoding that supports the € character, it will work. NSUTF8StringEncoding is generally a good choice.