使用海龟绘图。输入多个点，将这些点都两两相连。

import turtle


def con_line(xpoint_set,ypoint_set):
    """将输入点两两相连"""
    turtle.pensize(2)#调整画笔粗细
    turtle.speed(1)#设置画笔速度
    n=0
    for i,j in zip(xpoint_set,ypoint_set):#外循环遍历所有点
        turtle.penup()  #提笔
        turtle.goto(i,j)
        turtle.pendown()  #落笔
        n += 1
        m = 0
        for x, y in zip(xpoint_set, ypoint_set):#内循环连接所有点一次
            m += 1
            if m >= n:
                turtle.goto(x,y)
                turtle.penup()  # 提笔
                turtle.goto(i,j)
                turtle.pendown()  # 落笔
    turtle.hideturtle()#隐藏海归
    turtle.done()#保留窗口不被销毁


if __name__ == '__main__':
    xpoint_set = list(map(int,input("x点集:").split(" ")))#x点集
    ypoint_set = list(map(int,input("y点集:").split(" ")))#y点集
    con_line(xpoint_set,ypoint_set)