1，设定音量0.0~1.0
[myPlayer setVolume:0.5];
2，设定播放次数-1为无限循环
[myPlayer setNumberOfLoops:0];3，设定播放位置（重头播放）
[myPlayer setCurrentTime:0.0];4，播放
[myPlayer play];5，暂停
[myPlayer pause];6，停止
[myPlayer stop];7，音乐总长度
[myPlayer duration]
8，目前播放位置
[myPlayer currentTime]
9，声道数目
[myPlayer numberOfChannels]
10，向后跳转一秒
NSTimeInterval currentTime = [myPlayer currentTime];[myPlayer setCurrentTime:currentTime + 1];
-----------delegate，
1，- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag { NSLog(@"播放完毕");}
2，//电话中断- (void)audioPlayerBeginInterruption:(AVAudioPlayer *)player { NSLog(@"被中断");}
- (void)audioPlayerEndInterruption:(AVAudioPlayer *)player withOptions:(NSUInteger)flags { NSLog(@"从中断中恢复");} 3，取得播放档案的位置
NSURL* url = [[NSURL alloc] initFileURLWithPath:[[NSBundle mainBundle] pathForResource:@"FileName" ofType:@"mp3"]];
4，与音乐档案做链接
NSError* error = nil;myPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];if (!url || error) { //错误处理程序}
5，档案存放于网络6，取得播放档案的位置 NSURL *url = [NSURL URLWithString:@"http://FileName.mp3"];NSData *myNetworkData = [NSData dataWithContentsOfURL:url]; 7，与音乐档案做链接
NSError* error = nil;myPlayer = [[AVAudioPlayer alloc] initWithData:myNetworkData error:&error];if (!url || error) { //错误处理程序}
self.player = [self.player initWithContentsOfURL:[NSURL URLWithString:[VoiceRecorderBaseVC getPathByFileName:fileName ofType:@"wav"]] error:nil];
每次生成一遍，都进行了重新的初始化，
比如：self.player.isPlaying,
1,异步perform selector,
2,start,notend = playing，代理看是否播放完毕，