python生成的彩虹效果,大家可以参考:
使用的python版本:3.7.0 ,以下为源代码:
# rainbow.py from turtle import * from random import * def HSB2RGB(hues): hues = hues * 3.59 #100转成359范围 rgb = [0.0,0.0,0.0] i = int(hues/60) % 6 f = hues/60 - i if i == 0: rgb[0] = 1; rgb[1] = f;rgb[2] = 0 elif i == 1: rgb[0] = 1-f; rgb[1] = 1;rgb[2] = 0 elif i == 2: rgb[0] = 0; rgb[1] = 1;rgb[2] = f elif i == 3: rgb[0] = 0; rgb[1] = 1-f;rgb[2] = 1 elif i == 4: rgb[0] = f; rgb[1] = 0;rgb[2] = 1 elif i == 5: rgb[0] = 1; rgb[1] = 0;rgb[2] = 1-f return rgb def rainbow(): hues = 0.0 color(1,0,0) #绘制彩虹 hideturtle() speed(100) pensize(3) penup() goto(-400,-300) pendown() right(110) for i in range(100): circle(1000) right(0.13) hues = hues + 1 rgb = HSB2RGB(hues) color(rgb[0], rgb[1], rgb[2]) penup() def main(): setup(800, 600, 0, 0) bgcolor((0.5, 0.8, 1.0)) tracer(False) rainbow() #输出文字 goto(100,-100) pendown() color("red") write("Rainbow",align="center",font=("Script MT Bold", 80, "bold")) tracer(True) mainloop() if __name__ == '__main__': main()
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