如何把字符串中的報價？

Question

我是iOS新手。我的問題是我們如何從電子郵件中輸入雙引號「」？

NSString* messageString = [NSString stringWithFormat: @"%@ does not apppear to be valid email address.Do You Want sent Anyway?", email]; 
UIAlertView *alertView =[[UIAlertView alloc]initWithTitle:@"Invalid adress" message:messageString delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil]; 
[alertView show]; 
break; 

Answer 1

使用此代碼

NSString* messageString = [NSString stringWithFormat: @"\"%@\" does not appear to be valid email address.Do You Want sent Anyway?", email];