背景渐变可调节的C#窗体程序，注意输入的数据不要太大，否则程序会出错，一秀是在1-50之间，输入数字太小的话，效果不容易看到，输入接近50的数字比较合适，你会发现窗体背景渐变的某一色系会随着你输入数据的大小而发生变化，这可是用程序控制输入渐变色哦，非调用的背景图片。-Background gradient adjustable form C# programs, not too much attention to the input data, otherwise the process will go wrong, a show is between 1-50, enter the number is too small, the result is not easily seen, enter the number closer to 50 more suitable, you will find the form of a gradient background color will be with you the size of the input data changes, this is to use process control input gradient Oh, non-call background image.