请教一个下面的oc语句在swift 中怎么写？

[sstgaps]

NSArray *sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
return [obj1 compare:obj2 options:NSNumericSearch];
}];

找了个自动转换的老是报错，请大神指导下
var sortedArray = (keys as NSArray).sortedArray(comparator: {(_ obj1: Any, _ obj2: Any) -> ComparisonResult in
return obj1.compare(obj2 as? String ?? "", options: .numeric, range: nil, locale: .current)
})

[巴比伦富翁理财助手]

Using Swift's sorted function: var sortedArray = sorted(persons) { (obj1, obj2) in // The downcast to Person is only needed if persons is an NSArray or a Swift Array of AnyObjects let p1 = obj1 as Person let p2 = obj2 as Person return p1.name < p2.name } Or, using NSArray's sortedArrayUsingComparator: var sortedArray = persons.sortedArrayUsingComparator { (obj1, obj2) -> NSComparisonResult in let p1 = obj1 as Person let p2 = obj2 as Person let result = p1.name.compare(p2.name) return result }