更新：添加doString方法及对应的单元测试

lib/lua_cj_api.cpp

@@ -85,6 +85,28 @@ int run(void *selfd,const char *path,const char *arg)
     snprintf(self->result,MAX_RESULT,"%s",runner->reslt.c_str());
     return 0;
 }
+
+/// @brief 执行单句lua语句
+/// @param selfd init_lua_runner返回的void指针
+/// @param target 执行语句（字符串类型）
+/// @return 成功返回0,失败返回-1,并将lua出错原因拷贝至result中
+int dostring(void *selfd,const char *target){
+    lua_runner* self = (lua_runner*)selfd;
+    //重定向输入到回调函数
+    Lua_runner *runner = (Lua_runner*)self->lua_obj;//还原对象
+    if(runner == NULL)
+    {
+        errno = NAPI_LUA_STATE_ERROR;
+        return -1;
+    }
+    if(runner->dostring(target)==-1){
+        snprintf(self->result,MAX_RESULT,"%s",runner->reslt.c_str());
+        return -1;
+    }
+    snprintf(self->result,MAX_RESULT,"%s",runner->reslt.c_str());
+    return 0;
+}
+
 /// @brief 清理lua状态机缓存，虚拟栈，加载的包等
 /// @param self 使用init_lua_runner初始化的lua_runner结构体指针
 /// @return 0代表正常结束，-1表示异常退出

lib/lua_cj_api.h

@@ -62,6 +62,12 @@ int unload_lib(void *selfd,const char *name);
 /// @return 成功返回0,失败返回-1,并将lua出错原因拷贝至result中
 int run(void *selfd,const char *path,const char *arg);
 
+/// @brief 执行单句lua语句
+/// @param selfd init_lua_runner返回的void指针
+/// @param target 执行语句（字符串类型）
+/// @return 成功返回0,失败返回-1,并将lua出错原因拷贝至result中
+int dostring(void *selfd,const char *target);
+
 /// @brief 清理lua状态机缓存，不销毁状态机
 /// @param selfd init_lua_runner返回的void指针
 /// @return 成功返回0,失败返回-1

lib/lua_runner.cpp

@@ -209,6 +209,37 @@ int Lua_runner::run(const char *path,const char *arg)
         return -1;
     }
 }
+
+int Lua_runner::dostring(const char *target)
+{
+    if(target == NULL)
+    {
+        errno = NAPI_ERROR_FUNCS;
+        return -1;
+    }
+    if(luaL_dostring(this->L,target) != LUA_OK)
+    {
+        errno = NAPI_ERROR_FUNCS;
+        this->reslt = lua_tostring(this->L,-1);
+        lua_pop(L,1);//错误出栈
+        return -1;
+    }
+    if(lua_gettop(this->L) == 0) {
+        errno = NAPI_SCRIPT_BAD_RET;
+        this->reslt = "";
+        return -1;
+    }
+    if(lua_isstring(this->L,-1)){
+        this->reslt = lua_tostring(this->L,-1);
+        lua_pop(L,1);
+        return 0;
+    }
+    else{
+        errno = NAPI_SCRIPT_BAD_RET;
+        lua_pop(L,1);
+        return -1;
+    }
+}
 //TODO 实现函数调用 achieve func call via file
 /*
 int Lua_runner::callfunction()

lib/lua_runner.hpp

@@ -25,7 +25,8 @@ class Lua_runner//lua运行器对象
         int unload_lib(const char *name);//解除加载
         int run(const char *path = NULL,const char *arg = NULL);
         int clean();//清除状态机缓存
-        int callfunction();
+        //int callfunction();
+        int dostring(const char *target);
         std::string reslt;
         lua_State *get_lua_State();
     private: