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Update 70.Pandas的应用-1.md #987

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6 changes: 3 additions & 3 deletions Day66-80/70.Pandas的应用-1.md
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Expand Up @@ -179,7 +179,7 @@ ser2[ser2 >= 500]
dtype: int64
```

####属性和方法
#### 属性和方法

Series对象的常用属性如下表所示。

Expand Down Expand Up @@ -358,7 +358,7 @@ dtype: float64
```Python
# backfill或bfill表示用后一个元素的值填充空值
# ffill或pad表示用前一个元素的值填充空值
ser4.fillna(method='ffill')
ser4.ffill()
```

输出：
Expand Down Expand Up @@ -683,4 +683,4 @@ plt.ylabel('各季度占比')
plt.show()
```

![](https://github.com/jackfrued/mypic/raw/master/20220619171503.png)
![](https://github.com/jackfrued/mypic/raw/master/20220619171503.png)