python海龟图形不'；t画

当我运行下面的代码时，它只弹出一个窗口，不绘制任何图形

我试过参考文献中的一些例子，但在所有情况下，它都发生了。有人能帮我解决这个问题吗

import turtle
turtle.mainloop()
t = turtle.Turtle()
t.color('red')
t.pensize(10)
t.shape('turtle')

请看这里：

启动事件循环-调用Tkinter的mainloop函数必须是海龟图形程序中的最后一条语句。如果脚本是在-n模式（无子进程）下从空闲运行的，则不得用于交互式使用turtle图形

所以你的节目还有第二行

在没有mainloop的情况下，我还可以看到在repl.it中运行时绘制的红海龟：

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它什么都不做的原因是因为你实际上没有告诉“绘图者”

t

绘制任何东西。你告诉它要做的只是设置说明：使用什么颜色，画什么尺寸，等等

请尝试运行此代码。评论中的解释：

import turtle
# turtle.mainloop()  # Generally not necessary to run mainloop; can just delete
t = turtle.Turtle()  # Creating a turtle to do drawing
t.color('red')  # Telling it what color to draw
t.pensize(10)  # Telling it what size to draw at
t.shape('turtle')  # What shape turtle draw-er should be: "arrow", "turtle", etc

# Now let's draw something!
t.forward(50)  # Tell turtle to draw in forward direction 50 pixels
t.left(80)  # Tell turtle to turn in-place 80 degrees to left
t.forward(100)  # Draw 100 pixels forward
t.right(90)  # Turn in-place 90 degrees right
t.forward(170)  # Draw 170 pixels forward
# Done drawing!

turtle.exitonclick()  # Tell program to keep picture on screen, exit on click
# Note: See how that's `turtle` and not `t`? That's because we don't want to
# tell our draw-er `t` anything: `t` is just for drawing, it doesn't control
# the larger scope of starting and exiting. If we said `t.exitonclick()`, the
# program would just break at the end, because the draw-er does not know how
# to exit or anything.
# On the the other hand, the module `turtle` (where we get the draw-er and
# everything else from) does know how to handle starting and exiting, so that's
# why we make the call to the module itself instead of the draw-er `t`.

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您是在空闲状态下运行还是在独立状态下运行？我在空闲状态下和pycharm状态下都运行了这段代码，它们都给出了相同的结果（使用和不使用mainloop（））。Linux还是Windows？您是否已将mainloop设置为末尾？