macos 将 NSString 附加到 NSURL？
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Append NSString to NSURL?
提问by Josh Kahane
I have an NSURL, a file path, and I want to add an NSString to the end of it (the file name) how can I do this? But after this is don't I want the entire thing to be an NSURL.
我有一个 NSURL，一个文件路径，我想在它的末尾添加一个 NSString（文件名），我该怎么做？但在此之后，我不希望整个事情成为 NSURL。
Thanks.
谢谢。
采纳答案by Andy Milburn
I think it's as simple as:
我认为这很简单：
NSString *s = [aUrl.path stringByAppendingString:@"newString"];
回答by lyzkov
I think it's good solution:
我认为这是一个很好的解决方案：
NSURL *bUrl = [aUrl URLByAppendingPathComponent:@"newString"];
In Swift you could do the following,
在 Swift 中，您可以执行以下操作，
var bURL = aURL.URLByAppendingPathComponent( "newString" )
You can also state whether the URL is a directory,
您还可以说明 URL 是否是目录，
var bURL = aURL.URLByAppendingPathComponent( "newString", isDirectory: true )
回答by Jim Luther
If you have a file NSURL to a directory and you want to end up with a NSString containing the NSURL's path with a file name appended to it, use this:
如果你有一个文件 NSURL 到一个目录，并且你想最终得到一个包含 NSURL 路径的 NSString 并附加一个文件名，使用这个：
NSURL *url = [NSURL fileURLWithPath:@"/System" isDirectory:YES];
NSString *filename = @"foo";
NSString *result = [url.path stringByAppendingPathComponent:filename];
You can also use URLByAppendingPathComponentbut that adds an extra step which creates an extra NSURL object that isn't needed.
您也可以使用，URLByAppendingPathComponent但这会增加一个额外的步骤，该步骤会创建一个不需要的额外 NSURL 对象。
NSURL *url = [NSURL fileURLWithPath:@"/System" isDirectory:YES];
NSString *filename = @"foo";
NSURL *newURL = [url URLByAppendingPathComponent:filename];
NSString *result = newURL.path;
