如何初始化 NSMutableArray
我有一个循环将值添加到 NSMutableArray 中，但是当我继续进行下一批时，我需要清除并初始化数组以添加下一批数据，我想使用 [jobList release] 可以解决这个问题，但事实并非如此。有人可以让我知道每次迭代后我可以使用什么来重置数组吗？
I have a loop which adds values to an NSMutableArray, however when I move on to the next batch I need to clear down and initialise the array to add the next lot of data and I thought using [jobList release] would do the trick but it doesn't. Could someone please let me know what I can use to reset the array after each iteration.
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如果您向其发送
-release，那么该对象可能会被释放，但不确定不会被清除< /em> 如你所愿。解决方案非常简单：使用
-removeAllObjects方法：If you send
-releaseto it, then it is likely, but not certain that the object will be deallocated and not cleared as you want it to be.The solution is super-simple: Use the
-removeAllObjectsmethod:您可以简单地使用
[jobList removeAllObjects];You can simply use
[jobList removeAllObjects];如果没有其他对象保留该对象，则执行
release可能会导致该对象被释放，因此您绝对不想这样做。要进行清除，请使用
removeAllObjects。Doing a
releasemay cause the object to be deallocated if no other objects retain it, so you definitely don't want to do that.To do a clear down use
removeAllObjects.使用
release将释放您正在访问的对象，这是错误的。我想你正在寻找Using
releasewill deallocate the object which you are accessing, and this is wrong. I think you are looking for