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//比如需要打印当前被调用的方法，可以在一个方法中添加：NSLog(@"%@
call",NSStringFromSelector(_cmd));//会输出类似//2013-01-10
11:25:46.902 TDDataViewer[855:303] applicationDidFinishLaunching: call//这样的内容。//在cocos2d中，_cmd通常用于定时调用某个函数（schedule）//比如下面方法利用_cmd能够不定时地调用某个函数-(void)
scheduleUpdates { //
schedule the first update as usual [self
schedule:@selector(irregularUpdate:)
interval:1];
}-(void)
irregularUpdate:(ccTime)delta
{ //
unschedule the method first [self unschedule:_cmd]; //
I assume you’d have some kind of logic other than random to determine //
the next time the method should be called float
nextUpdate = CCRANDOM_0_1()
* 10; //
then re-schedule it with the new interval using _cmd as the selector [self
schedule:_cmd
interval:nextUpdate];
} |
原文地址：http://blog.csdn.net/lkeplei/article/details/44680907
