OC中调用swift的代理

swift中代理的声明：

@objc (ClassesViewDelegate)
public protocol ClassesViewDelegate : NSObjectProtocol {
    //课节的点击事件
    func classesView(number: String, name: String, sex : String) -> Void
}

@objc public weak var delegate : BJSCourseAllClassesViewDelegate?

self.delegate?. classesView(number: number, name: name, sex: sex)

OC中的实现：

classesView.delegate = self;

- (void)classesViewWith number:(NSString *) number name:(NSString *) name sex:(NSString *) sex {
    //代理实现
}