决绝Capturing 'demo' strongly in this block is likely to lead to a retain cycle

- (IBAction)onTest:(id)sender  {      BlockDemo *demo = [[BlockDemo alloc]init];            __weak typeof(BlockDemo) *weakDemo = demo;            [demo setExecuteFinished:^{          if (weakDemo.resultCode == 200) {              NSLog(@"call back ok.");          }      }];      [demo executeTest];  }

转载于:https://www.cnblogs.com/piaojin/p/5028557.html

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