ios - 如何检查文件是否存在使用 swift，从 objective c 重写

Question

如何将这种 objective-c 语言重写为 swift？

NSString *filePath = @"/Applications/MySample.app";
    if ([[NSFileManager defaultManager] fileExistsAtPath:filePath])
    {
        // avoid open add friend
    }

问候。

Answer 1

等效的 Swift 3 代码:

let filePath = "/Applications/MySample.app"
if (FileManager.default.fileExists(atPath: filePath)) {
    // avoid open add friend
}

swift 2

let filePath = "/Applications/MySample.app"
if (NSFileManager.defaultManager().fileExistsAtPath(filePath))
{
    // avoid open add friend
}