with open('B站top100-全站.csv', 'r', encoding='utf-8') as cf: reader = csv.DictReader(cf)如何提取对csv文件的每一行的数据做单独提取,如何遍历csv文件的每一行,如何遍历csv文件的每一个数据,请用python来写代码
时间: 2024-01-09 08:06:13 浏览: 149
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要提取每一行的数据,可以使用`for`循环遍历`reader`对象,如下所示:
```python
import csv
with open('B站top100-全站.csv', 'r', encoding='utf-8') as cf:
reader = csv.DictReader(cf)
for row in reader:
print(row)
```
要遍历每一行的数据,可以使用`row`变量,如下所示:
```python
import csv
with open('B站top100-全站.csv', 'r', encoding='utf-8') as cf:
reader = csv.DictReader(cf)
for row in reader:
for key, value in row.items():
print(f"{key}: {value}")
```
要遍历每一个数据,可以使用`row`变量和字典的`values()`方法,如下所示:
```python
import csv
with open('B站top100-全站.csv', 'r', encoding='utf-8') as cf:
reader = csv.DictReader(cf)
for row in reader:
for value in row.values():
print(value)
```
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