Objective c Can'；无法访问返回对象的属性？

我不能访问返回对象的属性吗？（我的意思是，不直接调用setter方法）

您需要强制转换返回的对象：

error: Semantic Issue: Member reference type 'struct objc_object *' is a pointer; maybe you meant to use '->'?
error: Semantic Issue: No member named 'aProperty' in 'struct objc_object'

或：

或：

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带指针“*”的字符？我是NoOB，但我从来没有看到它与星号，就像你做“char *Agv[] ]，就像写char ARV[] ]或char **ARGV……是一个双数组，每个标准C主接收命令行参数应该有这样的参数列表。仍然认为我不必在C++中这样做…谢谢！请稍等，解决方案1应该是

（（SomeObject*）[dictionary objectForKey:@“key1”）。apProperty=5
error: Semantic Issue: Member reference type 'struct objc_object *' is a pointer; maybe you meant to use '->'?
error: Semantic Issue: No member named 'aProperty' in 'struct objc_object'

((SomeObject*)[dictionary objectForKey:@"key1"]).aProperty = 5;

[(SomeObject*)[dictionary objectForKey:@"key1"] setAProperty: 5];

SomeObject* obj = [dictionary objectForKey:@"key1"];
obj.aProperty = 5;