iOS实现代码只执行一次
iOS实现代码只让执行一次
-(void)viewDidLoad{
[superviewDidLoad];
//Doanyadditionalsetupafterloadingtheview,typicallyfromanib.
[selfperformSelector:@selector(wangmumu:)withObject:@"100"afterDelay:1];
}
-(void)wangmumu:(NSString*)han{
staticdispatch_once_thanwanjie;
//只执行一次
dispatch_once(&hanwanjie,^{
NSLog(@"12345678910");
});
intniha=[hanintValue]-1;
if(niha==10){
return;
}
[selfperformSelector:@selector(hanwanjie:)withObject:[NSStringstringWithFormat:@"%d",niha]afterDelay:1];
}
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