iphone - 在 NSString 中输入换行符

Question

我需要在 MFMailComposeViewController 中设置邮件正文以分隔一些文本的行数。我正在使用以下代码行，但它不起作用。

[mail setMessageBody:[NSString stringWithFormat:@"Hi I am Interested to buy a vehicle for me Name :%@ %@ \n Contact No. : %@ \n Email : %@\n",txtFirst.text, txtLast.text, txtContact.text, txtEmail.text ] isHTML:YES];

我也尝试过这个

[mail setMessageBody:[NSString stringWithFormat:@"Hi I am Interested to buy a vehicle for me Name :%@ %@ </br> Contact No. : %@ </br> Email : %@</br>",txtFirst.text, txtLast.text, txtContact.text, txtEmail.text ] isHTML:YES];

有什么解决办法吗？

Answer 1

试试这个

[mail setMessageBody:
[NSString stringWithFormat:@"First:%@
                           \r\n Second:%@
                           \r\n Third:%@
                           \r\n Fourth:%@",
txtFirst.text, txtSecond.text, txtThird.text, txtFourth.text ] isHTML:YES];