fun前加不加a

fun前加不加a have a fun?...have fun? great fun 和a great fun a fun与fun 有什么区别 this->fun();为什么不可以写*this.fun() // A* a; a->fun(); *a.fun(); a fun fair翻译 was a fun mov a lot of fun=a great fun make it a real fun in a fun part of what a lot of fun have a fun time造句