Unity通过反射给gameObject添加组件

C#版本

public static Component AddComponent(GameObject go,string assembly,string classname)
{
    var asmb = System.Reflection.Assembly.Load(assembly);
    var t = asmb.GetType(assembly + "." + classname);
    if(null != t)
        return go.AddComponent(t);
    else
        return null;
}

lua版本

function AddComponent(go,classname)
    local com = go:GetComponent(classname)
    if com then return com end
    local t = System.Type.GetType(classname)
    if t then
        return go:AddComponent(t)
    end
    return nil
end