能不能支持类成员函数的返回值进行泛化？

例如

class SEX
{
public:
SEX () {};
~SEX () {};
template
R want ()
{
R value = xxx
return value;
}
};

调用：

SEX MM;
mm.want ();
mm.want ();

Lua用过一下，但是没什么经验。

最近写了一个工具，里面的一部分，需要把lua脚本载入，实现类似hook/event的处
理调用，另外还要实现lua写功能模块来扩展功能，供C++调用，免得C++部分被重复
编译，这扩展功能部分，主要实现后期处理。

谁有嵌入脚本处理的经验，说一下。

lua在使用上有什么需要注意的地方？多线程环境需要注意什么呢？

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