C语言，海龟作图程序，我测试每次都是直接第一行全为1，不知道哪个地方错了

//作图部分改了一下，自己看吧

                           switch(dir%4)//pos表示方向:0向上；1向右；2向下；3向左。初始化为0

                           {

                                   case 0:

                                           while (r-->0 && x >= 0)

                                          帆判旦 {

                                                   str[x--][y]=tmp

                                           }

                                           x++

                                           break

                                   case 1:

                                           while (r-->0 && y<COW)

                                           {

                                                   str[x][y++]=tmp

                                           }

                                           y--

                                           break

                                   case 2:

                                           while (r-->0 && x<COW)

                                           {

                                                   str[x++][y]=tmp

                                           }

                                           x--

 态扰                                          break

                                   case 3:

                                           while (r-->0 && y>=0)

                                           {

                                                   str[x][y--]=tmp

                          冲腔                 }

                                           y++

                                           break

   

                           }

一只小海龟(tutle库的使用)

课程内容如下：

1.召唤小海龟,导入turtle及设置海龟图形

import turtle

turtle.shape("turtle")

2.设置背景颜色为蓝色

turtle.bgcolor("blue")

3.让小海龟向前出发，移动距离为150px

turtle.forward(150)

4.让小海龟右转，右转角度为90°

turtle.right(90)

5.经过几轮直败闭胡行与右转的组合，最态含终形成正方形，最后再将正方形上色

turtle.fillcolor("yellow")

turtle.begin_fill()

结束

turtle.end_fill()

6.完整代码如下：

import turtle

turtle.shape("turtle")

turtle.bgcolor("blue")

turtle.fillcolor("yellow")

turtle.begin_fill()

#移动距离为150px

turtle.forward(150)

#右转角度为90°

turtle.right(90)

#移察拦动距离为150px

turtle.forward(150)

#右转角度为90°

turtle.right(90)

#移动距离为150px

turtle.forward(150)

#右转角度为90°

turtle.right(90)

#移动距离为150px!

turtle.forward(150)

turtle.end_fill()

---