program Project2; {$APPTYPE CONSOLE} uses SysUtils; type //定义一个对象事件方法 TCallbackFunc = function (i: Integer): Integer of object; TMyCallBackObject = class private FcallBack: TCallbackFunc; function SetcallBack(const Value: TCallbackFunc): Integer; pub
一.button回调 1. Lambda 表达式,C++11 Lambda 赋予了Cocos2d-x 3.0创建回调函数的灵活性. auto itemNor = Sprite::create("CloseNormal.png"); auto menuItem = MenuItemSprite::create(itemNor,nullptr,nullptr,[](Ref* sender) { log("show this msg."); }); auto menu =