//下載文件並保存
NSURL *url = [NSURL URLWithString:urlString];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSError *error = nil;
NSData *data = [NSURLConnection sendSynchronousRequest:request
returningResponse:nil
error:&error];
if (data != nil){
NSLog(@"下載成功");
NSLog(@"data=%@",data);
//保存
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *warFilePath = [path stringByAppendingPathComponent:@"JCRecordwav.wav"];;//存儲wav文件的路徑
[fileManager createFileAtPath:amrFilePath contents:nil attributes:nil];
//將數據寫入文件
[data writeToFile:amrFilePath atomically:YES];