我是JavaScript的初学者，我发现一个概念非常困惑。考虑以下代码:varperson={firstName:"Penelope",lastName:"Barrymore",//Sincethe"this"keywordisusedinsidetheshowFullNamemethodbelow,andtheshowFullNamemethodisdefinedonthepersonobject,​//"this"willhavethevalueofthepersonobjectbecausethepersonobjectwillinvokeshowFullName()​showF

我是JavaScript的初学者，我发现一个概念非常困惑。考虑以下代码:varperson={firstName:"Penelope",lastName:"Barrymore",//Sincethe"this"keywordisusedinsidetheshowFullNamemethodbelow,andtheshowFullNamemethodisdefinedonthepersonobject,​//"this"willhavethevalueofthepersonobjectbecausethepersonobjectwillinvokeshowFullName()​showF