今天完成了環境的搭建，參考博客在這里：

https://blog.csdn.net/qiangbizhi3622/article/details/79467994

沒有一次成功，遇見了一個巨坑：

既然是vs2019，就要注意win32，不然報錯很崩潰的。

又填入了如下代碼的確能做：

#include <iostream>
#include <glad/glad.h>
#include <GLFW/glfw3.h>

void framebuffer_size_callback(GLFWwindow* window, int width, int height);
void processInput(GLFWwindow *window);
const unsigned int SCR_WIDTH = 600;
const unsigned int SCR_HEIGHT = 500;
int main(int argc, const char * argv[]) {
    // insert code here...
    std::cout << "Hello, World!\n";
    glfwInit();//初始化GLFW
    //使用opengl 3.3版本，
    //我們將主版本號(Major)和次版本號(Minor)都設為3。我們同樣明確告訴GLFW我們使用的是核心模式(Core-profile)。
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    //如果是mac 就把這段編輯進去
    #ifdef __APPLE__
        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // uncomment this statement to fix compilation on OS X
    #endif
    //創建window
    GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "openGL第一個窗口", NULL, NULL);
    if(window == NULL){
        std::cout << "創建失敗" << std::endl;
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
    if(!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)){
        std::cout << "Failed !" << std::endl;
        return -1;
    }
    
//    循環渲染
    while (!glfwWindowShouldClose(window))
    {
        // input監聽輸入的內容
        processInput(window);

        glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);
        
        glfwSwapBuffers(window);
        glfwPollEvents();
    }
    //直接終止glfw
    glfwTerminate();
    return 0;
}

//窗口大小改變時候觸發
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
    // make sure the viewport matches the new window dimensions; note that width and
    // height will be significantly larger than specified on retina displays.
    glViewport(0, 0, width, height);
}

void processInput(GLFWwindow *window)
{
    if(glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
        glfwSetWindowShouldClose(window, true);
}