PC机以二进制模式接收的图像数据在显示前需要数据类型变换，即将二进制数变为整型数，也就是256个灰度级的像素值.图像的显示利用VB的Picture控件为画板，用描点函数将图像逐点画到画板上。接收一行画一行，画完整幅图像后存为BMP格式的图像文件-PC, in binary mode in the display image data received before the need to transform the data type, is about to become a binary i