我有一個產生此編譯器錯誤的一些代碼: CS0236 A field initializer cannot reference the non-static field, method, or property 'PublicModule.rnd' 的代碼如下,與錯誤的行標: public class PublicModule : ModuleBase
{
Random rnd = ne
Instrumentation.ActivityMonitor (IntentFilter which,
Instrumentation.ActivityResult result,
boolean block)
from this this Documentation Instrumentation.ActivityMonitor有3個參數。我真的不明白第二個參數