18.下列程序绘制的图形是?( )
importturtle
screen=turtle.Screen()
pen=turtle.Turtle()
pen.forward(100)
pen.right(90)
pen.forward(100)
pen.right(90)
pen.forward(100)
pen.right(90)
pen.forward(100)
turtle.done()
A.长方形
B.三角形
C.正方形
D.圆形
18.下列程序绘制的图形是?( )
importturtle
screen=turtle.Screen()
pen=turtle.Turtle()
pen.forward(100)
pen.right(90)
pen.forward(100)
pen.right(90)
pen.forward(100)
pen.right(90)
pen.forward(100)
turtle.done()
A.长方形
B.三角形
C.正方形
D.圆形
Scratch3.0 全国青少年软件编程等级考试 Python Scratch图形化一级 Scratch图形化四级 Scratch图形化三级 Scratch图形化二级 电子学会