• 直接代码：

- (void)playsoundAction:(NSString *)soundWord {
    // 播放声音
    
    if (self.textField.text.length > 0) {
        soundWord = self.textField.text;
    } else {
        [KAlertViewFactory showToastWithMessage:@"无法读取该单词"];
        return;
    }
    // 如果是其他字符串，可以先编码，之后在拼接完成，最后使用
//    NSString  *newUrlString = [contentStr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
//    NSString * soundAddress = [NSString stringWithFormat:@"https://fanyi.baidu.com/gettts?lan=zh&text=%@&spd=5&source=web",newUrlString];
//    [[WL_Tool getInstance] SoundPlayer:soundAddress];
    NSString *soundUrl = [NSString stringWithFormat:@"https://fanyi.baidu.com/gettts?lan=zh&text=%@&spd=3&source=wise", soundWord];
    // 需要编码：转换成网址格式，以免不是正常网址，造成错误
    NSString *urlStr = [soundUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
    [[WL_Tool getInstance] SoundPlayer:urlStr];
    
}
  

• 调用的方法：拿到音频（这里获取的是.mp3格式的音频，直接播放，退出页面时，停止播放）

//声音播放
-(void)SoundPlayer:(NSString *)strUrl;
{
    [[WL_AFShareManager sharedManagerReturnData] GET:strUrl parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
        
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        //请求成功返回数据 根据responseSerializer 返回不同的数据格式
        NSLog(@"%@",task.currentRequest.URL);
        [SVProgressHUD dismiss];
        self.player=[[AVAudioPlayer alloc]initWithData:responseObject error:nil];
        if ([self.player prepareToPlay] &&[self.player play])
        {
            //成功播放音乐
        }
        
        //设置锁屏仍能继续播放
        [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:nil];
        [[AVAudioSession sharedInstance] setActive: YES error: nil];
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        //请求失败
        NSLog(@"%@",task.currentRequest.URL);
        NSLog(@"error-->%@",error);
        [SVProgressHUD dismiss];
        
    }];
}

// 声音停止播放
- (void)SoundStop {
    [self.player stop];
}

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
    if (self.toolBlock !=nil) {
        self.toolBlock(0);
    }
}

- (void)audioPlayerDecodeErrorDidOccur:(AVAudioPlayer *)player error:(NSError * __nullable)error
{
    NSLog(@"%@",error.mj_JSONString);
}