iOS - 去除字符串首尾空格、换行

1. 去除首尾空格

NSString *title = [title stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

1. 去除首尾换行

NSString *title = [title stringByTrimmingCharactersInSet:[NSCharacterSet newlineCharacterSet]];

1. 去除首尾空格和换行

NSString *title = [title stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

摘自：https://blog.csdn.net/zhoupengju/article/details/52168926