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];
- }
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