在NSString中转义字符如newline和double-quote的最佳方法

NSString *stringWithNewline = @"This is a string\nwith a newline character.";

NSString *stringWithDoubleQuote = @"This is a string with a \"double quote\" character.";

NSString *originalString = @"This is a string\nwith a \"double quote\" character.";
NSMutableString *mutableString = [NSMutableString stringWithString:originalString];
[mutableString replaceOccurrencesOfString:@"\n" withString:@"
" options:0 range:NSMakeRange(0, mutableString.length)];
[mutableString replaceOccurrencesOfString:@"\"" withString:@""" options:0 range:NSMakeRange(0, mutableString.length)];