English 中文(简体)
X编码使我知道我使用国家航空航天局数字是错误的。
原标题:Xcode keeps telling me my usage of NSDirectoryEnumerator is wrong.

我正试图从NSFileManager那里传来一名国家统计局局长。

NSDirectoryEnumerator *enum = [fm enumeratorAtURL:*url includingPropertiesForKeys:nil options:nil errorHandler:nil];

缩略语

Expected identifier or (

我必须进口除核心基金会以外的任何东西,以使用<条码>NSDirectoryE numberator。 或者,对于我所失踪的用yn是否有某种特别的骗子?

// edit:

<代码>url当然是有效的NSURL。 即便如此,情况也可能出现。

最佳回答

在C,以及从延伸到C,enum是关键词。 改名。

此外,除非星号为<代码>,否则你必须清除星号。 注

NSDirectoryEnumerator *enum = [fm enumeratorAtURL:*url includingPropertiesForKeys:nil options:0 errorHandler:nil];
                                                  ^
                                              Right here!

@omz所示,选择参数应为0,而不是nil

问题回答

暂无回答




相关问题
Asynchronous request to the server from background thread

I ve got the problem when I tried to do asynchronous requests to server from background thread. I ve never got results of those requests. Simple example which shows the problem: @protocol ...

objective-c: Calling a void function from another controller

i have a void, like -(void) doSomething in a specific controller. i can call it in this controller via [self doSomething], but i don t know how to call this void from another .m file. I want to call ...

ABPersonViewController Usage for displaying contact

Created a View based Project and added a contact to the AddressBook using ABAddressBookRef,ABRecordRef now i wanted to display the added contact ABPersonViewController is the method but how to use in ...

NSArray s, Primitive types and Boxing Oh My!

I m pretty new to the Objective-C world and I have a long history with .net/C# so naturally I m inclined to use my C# wits. Now here s the question: I feel really inclined to create some type of ...

NSUndoManager and runModalForWindow:

I have a simple Core Data app which displays a list of entities in the main window. To create or add new entities, I use a second modal window with a separate managed object context so changes can be ...

NSMutableArray values becoming "invalid"

I m trying to show a database information in a tableview and then the detailed information in a view my problem is as follow: I created a NSMutableArray: NSMutableArray *myArray = [[NSMutableArray ...

iPhone numberpad with decimal point

I am writing an iPhone application which requires the user to enter several values that may contain a decimal point (currency values, percentages etc.). The number of decimal places in the values ...

热门标签