摘要：1 UIView *view_bg = [[UIView alloc]initWithFrame:cell.frame]; 2 view_bg.backgroundColor = UIColorFromRGB(0xFFFFFF, 1); 3 cell.selectedBackgroundView = view_bg; 阅读全文

摘要：#pragma mark - 播放语音 -(void)play:(NSString *)word { // AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-HK"]; AVSpeechSynthesisVoice *voice = [AVSpeechSynthesi... 阅读全文

摘要：十六进制转换成十进制 或 十进制转换成十六进制 阅读全文