发布时间:2019-08-01 11:04:33
源代码如下
#根据数据文件在窗口中动态路径绘制
import turtle
def main():
#设置窗口信息
turtle.title('数据驱动的动态路径绘制')
turtle.setup(800, 600, 0, 0)
#设置画笔
pen = turtle.Turtle()
pen.color("red")
pen.width(5)
pen.shape("turtle")
pen.speed(5)
#读取文件
result=[]
file = open("data.txt","r")
for line in file:
result.append(list(map(float, line.split(','))))
print(result)
#动态绘制
for i in range(len(result)):
pen.color((result[i][3],result[i][4],result[i][5]))
pen.forward(result[i][0])
if result[i][1]:
pen.rt(result[i][2])
else:
pen.lt(result[i][2])
pen.goto(0,0)
if __name__ == '__main__':
main()
###############################################################
#如何理解这几句代码:
1:
for line in file:
result.append(list(map(float, line.split(','))))
2
#动态绘制
for i in range(len(result)):
pen.color((result[i][3],result[i][4],result[i][5]))
pen.forward(result[i][0])
if result[i][1]:
pen.rt(result[i][2])
else:
pen.lt(result[i][2])