runtime
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20 hours ago •
suifengqjn
suifengqjn
runtime 7种常用方法
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runtime issues
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class_addMethod([self.person class], @selector(guess), (IMP)guessAnswer, "v@:"); if ([self.person respondsToSelector:@selector(guess)]) { //Method method = class_getInstanceMethod([self.xiaoMing class], @selector(guess)); [self.person performSelector:@selector(guess)]; ``` } else{ NSLog(@"Sorry,I don't know"); } ``` 这个意思是不是如果没有 guess 方法 就调用 guessAnswer方法？
fourViewController把sayName、changeMethod交换，再次回到threeViewController交换sayName、saySex有bug。目前在寻找更好的方法······
