ios后台处理数据存储线程

在类中，进行编辑下面的代码：

    NSLog(@"main thread begin...");

    [selfperformSelectorInBackground:@selector(doSomething:)withObject:nil];

    NSLog(@"main thread end.....");

- (void) doSomething:(id)sender

{

    NSLog(@"one thread begin..." );  

    NSAutoreleasePool *pool = [[NSAutoreleasePoolalloc] init];

    for (int i=0; i<self.StarName_Final.count; i++) {

        [self SaveToDataBase:[StarName_FinalobjectAtIndex:i]];

    }

    NSLog(@"one thread end..." );  

    [pool release];

}