是“自我”吗？必要？ [英] Is "self" necessary?

问题描述

在Objective-C中使用self是否有必要或者只是一个好习惯？我一直都没有使用它而根本没有使用它，我似乎没有注意到任何差别。是不是只是暗示？

Is using "self" ever necessary in Objective-C or maybe just a good practice? I have gone from using it all the time to not using it at all and I don't seem to really notice any difference. Isn't it just implied anyway?

推荐答案

自我是必要的你希望一个对象发送消息，好吧， self 。通过getter / setter访问属性有时也是有益的，在这种情况下，您还需要使用 self ，如 self.propertyname 或 self.propertyname = value 。 （这些不等于 propertyname 或 propertyname = value 。

self is necessary if you wish for an object to send messages to, well, itself. It is also occasionally beneficial to access properties through getters/setters, in which case you'll also need to use self, as in self.propertyname or self.propertyname = value. (These are not equivalent to propertyname or propertyname = value.

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