[英]Swapping nsmutabledata
I have one UIViewController containing a UITableView. 我有一个包含UITableView的UIViewController。 Along with this I have 3 buttons and 4 Mutablable arrays.
除此之外,我还有3个按钮和4个可变数组。
Array "prime" is the primary datasource for the table view. 数组“ prime”是表视图的主要数据源。
When I hit button a , b or c I write 当我按下按钮a,b或c时,我写
prime= a
[table reloadData];
or 要么
prime= b
[table reloadData];
The problem I have is that after say 2 button pushes prime is not equal to either a or b. 我的问题是,在说2个按钮后,素数不等于a或b。 It contents now contain the contents of a "and" b and it's contents will continue to accumulate after every assign.
现在它的内容包含a和b的内容,并且每次分配后它的内容将继续累积。
How can I make 1 nsmutuablearray switch its contents to be that of another? 如何使1个nsmutuablearray切换其内容为另一个内容?
I know I can just remove all objects and then add more. 我知道我可以删除所有对象,然后添加更多对象。 I more wanted to know if its possible to make prime be a pointer to ab or c?
我更想知道是否有可能使质数成为ab或c的指针?
尝试尝试:prime = [副本];
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