diff --git a/TouTiao/Main2ViewController.swift b/TouTiao/Main2ViewController.swift
index 5744bf9..4084235 100644
--- a/TouTiao/Main2ViewController.swift
+++ b/TouTiao/Main2ViewController.swift
@@ -25,6 +25,7 @@ class Main2ViewController: UIViewController {
         var cons:[UIViewController] = [UIViewController]()
         
         var controllerArray : [UIViewController] = []
+        var controllerArray2 : [UIViewController] = []
         
         // Do any additional setup after loading the view.
         let aStoryboard = UIStoryboard(name: "Main", bundle:Bundle.main)
diff --git a/TouTiao/UIColor-Extension.swift b/TouTiao/UIColor-Extension.swift
index 26e34f5..7fab6c0 100644
--- a/TouTiao/UIColor-Extension.swift
+++ b/TouTiao/UIColor-Extension.swift
@@ -19,6 +19,7 @@ extension UIColor {
             let index   = rgba.characters.index(rgba.startIndex, offsetBy: 1)
             let hex     = rgba.substring(from: index)
             let scanner = Scanner(string: hex)
+            let scanner2 = Scanner(string: hex)
             var hexValue: CUnsignedLongLong = 0
             if scanner.scanHexInt64(&hexValue) {
                 switch (hex.characters.count) {