设置当前代理设置

Question

我使用SCDynamicStoreCopyProxies来检索代理信息。我希望，一旦我有了字典，我就可以设置当前的代理设置。原来，SCDynamicStoreCopyProxies返回的字典是只读的。如何更改当前的代理设置？

到目前为止我尝试过：

 func setNet(){

        let ds: SCDynamicStoreRef = SCDynamicStoreCreate(nil, "setNet" as 
        CFString, nil, nil)!

        let list = SCDynamicStoreCopyProxies(ds)
        print(list!)

        if let list = SCDynamicStoreCopyProxies(ds) as NSDictionary? {
            if let port = list["HTTPPort"] as? Int {
                print("HTTPPort:", port)
                list["HTTPPort"] = 8088; // error, subscript is get-only
            }
        }
}

Answer 1

要更改“只读”（又名非变异）字典，请使用func mutableCopy() -> AnyObject。