ios 去除字符串首尾空格、换行

//去除首尾空格

NSString *place = [self.placeTextView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

//去除首尾空格和换行

NSString *place = [self.placeTextView.textstringByTrimmingCharactersInSet:[NSCharacterSetwhitespaceAndNewlineCharacterSet]];