设计一个窗口，在窗口中输出一行文字，每一行的文字相继出现后又消失，而且每一行文字的字体按"楷体_GB2312"、"宋体"、"隶书"、"黑体"、"幼圆"循环变化，字号由8到50线性增长，颜色由RGB(0,0,0) 到RGB(255,0,0)线性增长-Design a window, the output line of text in the window, each line of text one after another and then disappear, and each line