Extension to access the URL Parameters within your NSURL.

NSURL Parseer.md

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extension NSURL {
    var prt_URLItems: [String: String]? {

        let components = NSURLComponents(URL: self, resolvingAgainstBaseURL: false)

        guard let items = components?.queryItems else {
            return nil
        }

        var infos = [String: String]()
        items.forEach {
            infos[$0.name] = $0.value
        }
        return infos
    }
}

let items = NSURL(string: "http://www.weibo.com/1783821582/profile?rightmod=1&wvr=6&mod=personinfo")?.prt_URLItems
print(items)

// Optional(["mod": "personinfo", "rightmod": "1", "wvr": "6"])