MATLAB dll in Visual C++

This is my MATLAB function:

if true
  function [c] = myfittest(x, y)
 c=x+y;
 return;
end
end
i have tested the matlab2015a(64bit) and matlab2017a(64bit),and  the vs is vs2013(64bit)

if true
  int main(int argc, char *argv[])
{
	int a = 4;
	int b = 3;
	int c;
	
	if (!myfittestInitialize())  //初始化库文件,在.h文件中有定义，Mytest为生成文件名
	{
		cout << "Mytest Initialize failed!"<< endl; 
		return 0;
	}

mwArray mwa(1, 1, mxUINT32_CLASS); //给输入参数A赋值 mwa.SetData(&a, 1);

mwArray mwb(1, 1, mxUINT32_CLASS); //给输入参数B赋值 mwb.SetData(&b, 1);

mwArray mwy(1, 1, mxUINT32_CLASS);

myfittest(1, mwy, mwa, mwb); //调用test函数，该函数在.h中有定义 //第一个参数：.m文件中test函数对应的输出参数个数 //第二个参数：.m文件中test函数对应的输出参数C //第三个参数：.m文件中test函数对应的输入参数A //第四个参数：.m文件中test函数对应的输入参数B mwy.GetData(&c, 1); //获取test计算结果C

cout c << endl; myfittestTerminate(); //结束end 在.h中有定义 } end the error is <</matlabcentral/answers/uploaded_files/104358/QQ%E5%9B%BE%E7%89%8720180211193931.png> and when i add the the environment variables of the mclmcrrt8_5.dll

, the myfittestInitialize() return fail