ios 测试文件是否存在的快速方法是什么？
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What's a quick way to test to see a file exists?
提问by mahboudz
I want to quickly check to see if a file exists in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
我想快速检查我的 iPhone 应用程序的 Documents 目录（或任何与此相关的路径）中是否存在文件。我可以枚举目录的文件，或者我可以尝试打开特定文件。最快的方法是什么？我只需要知道文件是否存在或不存在。
回答by rein
Swift v3:
斯威夫特 v3：
let fileExists = FileManager.default.fileExists(atPath: somePath)
let fileExists = FileManager.default.fileExists(atPath: somePath)
Thanks to Nikolay Suvandzhiev.
Objective-C (Original):
Objective-C（原始）：
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:somePath];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:somePath];
