光学领域，基于Matlab编写的图像生成演示程序，可生成菲涅尔衍射中的圆孔衍射图样，并进行了多个参数的模拟对比，彩色图样更加清晰。-Optics, image generation based on Matlab prepared demo program can generate Fresnel diffraction diffraction pattern of the hole and make a simulated comparison of multiple parameters, color pattern more clearly.