[已解决]绘制图表报错

曲速飞跃

错误：

1. Traceback (most recent call last):
   
2.   File "D:\my.code\CityMorning Tools\TurtleTomato\TurtleTomato.py", line 157, in <module>
   
3.     plt.pie(sizes,   autopct='%1.1f%%',
   
4.   File "C:\Users\Charlie\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\pyplot.py", line 2810, in pie
   
5.     return gca().pie(
   
6.   File "C:\Users\Charlie\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\__init__.py", line 1431, in inner
   
7.     return func(ax, *map(sanitize_sequence, args), **kwargs)
   
8.   File "C:\Users\Charlie\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\axes\_axes.py", line 2995, in pie
   
9.     x = np.asarray(x, np.float32)
   
10.   File "C:\Users\Charlie\AppData\Local\Programs\Python\Python38\lib\site-packages\numpy\core\_asarray.py", line 83, in asarray
    
11.     return array(a, dtype, copy=False, order=order)
    
12. ValueError: could not convert string to float: '1,1,2'
    

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代码：

1. import matplotlib.pyplot as plt
   
2.         sizes = [s]
   
3.         plt.pie(sizes,   autopct='%1.1f%%',
   
4.         shadow=True, startangle=90)
   
5.         plt.axis('equal')
   
6.         plt.show()
   

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s = '1,1,2'

最佳答案

月排行榜 / 总排行榜

Twilight6

2020-8-16 14:02:52

改成这样，你字符串不能直接拿去用，切割逗号然后转为 int 即可

1. import matplotlib.pyplot as plt
   
2. s = '1,1,2'
   
3. sizes = [ int(i) for i in s.split(',')]
   
4. plt.pie(sizes,   autopct='%1.1f%%',
   
5. shadow=True, startangle=90)
   
6. plt.axis('equal')
   
7. plt.show()

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跳转到最佳答案楼层

Twilight6

改成这样，你字符串不能直接拿去用，切割逗号然后转为 int 即可

1. import matplotlib.pyplot as plt
   
2. s = '1,1,2'
   
3. sizes = [ int(i) for i in s.split(',')]
   
4. plt.pie(sizes,   autopct='%1.1f%%',
   
5. shadow=True, startangle=90)
   
6. plt.axis('equal')
   
7. plt.show()

复制代码

txxcat

如果一定要用变量s，直接把列表赋值给s就可以了。

1. import matplotlib.pyplot as plt
   
2. sizes = s
   
3. plt.pie(sizes,   autopct='%1.1f%%',
   
4. shadow=True, startangle=90)
   
5. plt.axis('equal')
   
6. plt.show()
   
7. 
   
8. s=[1,1,2]

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