定制，

 info.reason = [info.reasonstringByTrimmingCharactersInSet:[NSCharacterSetwhitespaceCharacterSet]];

    NSArray *arr = [info.reasoncomponentsSeparatedByString:@" "];

    //上传铃声，转发铃声

    if (arr.count >= 2) {

        self.kLabel.hidden = YES;

        NSString *str = [arr objectAtIndex:0];

        NSString *mStr;

        NSRange mRan = [info.reason rangeOfString:@"收到鲜花"];

        if (mRan.location != NSNotFound) {

            info.reason = [info.reasonstringByReplacingOccurrencesOfString:@"收到鲜花"withString:@""];

        }

        mStr = [info.reasonstringByReplacingOccurrencesOfString:str withString:@""];

来源：https://www.cnblogs.com/guligei/p/3578899.html