出现这种错误的原因是什么"invalid use of non-static data member "

Question

当我为类编写突变器时，我遇到了以下错误：
错误1：无效使用非静态数据成员'MyGraph'error2 ："MyGraph
"是'MyGraphBuilder'的私人成员 mygraphbuilder.h：51：11：注意：在这里声明为私有你能帮我解决这个问题吗！

// Header file
class MyGraphBuilder
{
 private:
  graph_t MyGraph;
// Mutator declared in Header, and Defined in The CPP File
void setGraph(graph_t);
}; // end of class

在 cpp 文件上定义函数

//This Part only From CPP File not From Header so I added Scope
void setGraph(graph_tYourGraph){
  MyGraphBuilder::MyGraph = YourGraph;
}
// End of Part from CPP File

Answer 1

我很确定它应该在 cpp 文件中这样格式化

void MyGraphBuilder::setGraph(graph_t YourGraph){
    MyGraph = YourGraph;
}