问题

plt.show() 在 Matplotlib Python 中无法工作

我的代码：

```python
# Python程序用于显示pyplot模块
import matplotlib.pyplot as plt
from matplotlib.figure import Figure

# 创建一个宽度为5英寸、高度为4英寸的新图形
fig = plt.figure(figsize=(5, 4))

# 为图形创建新的坐标轴
ax = fig.add_axes([1, 1, 1, 1])

# 添加要绘制的数据
ax.plot([2, 3, 4, 5, 5, 6, 6],
        [5, 7, 1, 3, 4, 6, 8])
plt.show()

我期望看到一个图表，但是却弹出了一个空白屏幕：

<details>
<summary>英文:</summary>

plt.show() isn&#39;t working in Matplotlib Python

My Code:

Python program to show pyplot module

import matplotlib.pyplot as plt
from matplotlib.figure import Figure

Creating a new figure with width = 5 inches

and height = 4 inches

fig = plt.figure(figsize =(5, 4))

Creating a new axes for the figure

ax = fig.add_axes([1, 1, 1, 1])

Adding the data to be plotted

ax.plot([2, 3, 4, 5, 5, 6, 6],
[5, 7, 1, 3, 4, 6 ,8])
plt.show()

I was expecting a graph but a blank screen opens in front of me:

![The Blank Screen](https://i.stack.imgur.com/ramYC.png)

</details>


# 答案1
**得分**: 1

在代码行`ax = fig.add_axes([1, 1, 1, 1])`中，数值[1, 1, 1, 1]分别表示轴的左侧、底部、宽度和高度。这些值指定了轴在图中的位置和大小。

在你的代码中，数值[1, 1, 1, 1]表示轴覆盖整个图。

可以像下面这样修改代码：

```python
# Python程序展示pyplot模块
import matplotlib.pyplot as plt
from matplotlib.figure import Figure

# 创建一个新的图，宽度为5英寸，高度为4英寸
fig = plt.figure(figsize=(5, 4))

# 为图创建新的轴
ax = fig.add_axes([0.1, 0.1, 0.8, 0.8])

# 添加要绘制的数据
ax.plot([2, 3, 4, 5, 5, 6, 6],
        [5, 7, 1, 3, 4, 6, 8])
plt.show()

# Python program to show pyplot module
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
 
# Creating a new figure with width = 5 inches
# and height = 4 inches
fig = plt.figure(figsize =(5, 4))
 
# Creating a new axes for the figure
ax = fig.add_axes([0.1, 0.1, 0.8, 0.8])
 
# Adding the data to be plotted
ax.plot([2, 3, 4, 5, 5, 6, 6],
        [5, 7, 1, 3, 4, 6 ,8])
plt.show()