Update QCloudCore.podspec

Author: EricCheungSCUT

QCloudCore.podspec

@@ -32,6 +32,8 @@ QCloudCore--腾讯云iOS-SDK Foundation。提供腾讯云iOS相关SDK的基础
   s.frameworks ='CoreMedia', "Accelerate", "SystemConfiguration" 
   s.libraries = "z","c++"
   s.public_header_files = "QCloudCore/Classes/**/*.h"
+  s.static_framework = true
+
   # s.public_header_files = 'Pod/Classes/**/*.h'
   # s.frameworks = 'UIKit', 'MapKit'
   # s.dependency 'AFNetworking', '~> 2.3'