1*67e74705SXin Li 2*67e74705SXin Li 3*67e74705SXin Li 4*67e74705SXin Li 5*67e74705SXin Li @interface A 6*67e74705SXin Li + (int)method1; 7*67e74705SXin Li - (int)method2:(int)param; 8*67e74705SXin Li @end 9*67e74705SXin Li 10*67e74705SXin Li @interface B : A 11*67e74705SXin Li @end 12*67e74705SXin Li 13*67e74705SXin Li @interface C 14*67e74705SXin Li @end 15