update errorbar plot

docs/_sources/第二回：艺术画笔见乾坤/index.md.txt

@@ -207,7 +207,7 @@ fig = plt.figure()
 x = np.arange(10)
 y = 2.5 * np.sin(x / 20 * np.pi)
 yerr = np.linspace(0.05, 0.2, 10)
-plt.errorbar(x, y + 3, yerr=yerr, label='both limits (default)');
+plt.errorbar(x,y+3,yerr=yerr,fmt='o-',ecolor='r',elinewidth=2);
 ```
 
 

docs/第二回：艺术画笔见乾坤/index.html

@@ -490,7 +490,7 @@
 </div>
 </div>
 <div class="cell_output docutils container">
-<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[&lt;matplotlib.lines.Line2D object at 0x000001EBFE710A90&gt;, &lt;matplotlib.lines.Line2D object at 0x000001EBFE710E20&gt;]
+<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[&lt;matplotlib.lines.Line2D object at 0x00000298AE900A30&gt;, &lt;matplotlib.lines.Line2D object at 0x00000298AE900DC0&gt;]
 </pre></div>
 </div>
 <img alt="../_images/index_6_1.png" src="../_images/index_6_1.png" />
@@ -540,7 +540,7 @@ pyplot里有个专门绘制误差线的功能，通过<code class="docutils lite
 <span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
 <span class="n">y</span> <span class="o">=</span> <span class="mf">2.5</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">x</span> <span class="o">/</span> <span class="mi">20</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">pi</span><span class="p">)</span>
 <span class="n">yerr</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">linspace</span><span class="p">(</span><span class="mf">0.05</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span>
-<span class="n">plt</span><span class="o">.</span><span class="n">errorbar</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="n">yerr</span><span class="o">=</span><span class="n">yerr</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="s1">&#39;both limits (default)&#39;</span><span class="p">);</span>
+<span class="n">plt</span><span class="o">.</span><span class="n">errorbar</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="n">y</span><span class="o">+</span><span class="mi">3</span><span class="p">,</span><span class="n">yerr</span><span class="o">=</span><span class="n">yerr</span><span class="p">,</span><span class="n">fmt</span><span class="o">=</span><span class="s1">&#39;o-&#39;</span><span class="p">,</span><span class="n">ecolor</span><span class="o">=</span><span class="s1">&#39;r&#39;</span><span class="p">,</span><span class="n">elinewidth</span><span class="o">=</span><span class="mi">2</span><span class="p">);</span>
 </pre></div>
 </div>
 </div>