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pd读取文件显示不全问题解决，如何显示全部的列
```
import pandas as pd
df = pd.read_csv('data/HR.csv')
print(df.head())
```## 读取时值显示一部分列
## 这时只需要加一句 pd.set_option('display.max_columns', None) 就可以显示全部的列
```
import pandas as pd
pd.set_option('display.max_columns', None)
df = pd.read_csv('data/HR.csv')
print(df.head())
```
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December 4, 2020 at 3:12 pm
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Danielle Steel
December 4, 2020 at 3:12 pm
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Rosie
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