在桌面上的我的数据文件里的p文件里有t1.csv,t2.csv,t3.csv。如何用python给t1.csv,t2csv,t3csv在第一行添加data,name,age

可以使用Python的csv模块来读写csv文件。具体步骤如下：

1. 导入csv模块

import csv

2. 打开csv文件并读取数据

with open('t1.csv', 'r') as f:
    reader = csv.reader(f)
    data = list(reader)

3. 在数据的第一行添加要插入的内容

data.insert(0, ['data', 'name', 'age'])

4. 写入修改后的数据到csv文件中

with open('t1.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerows(data)

完整代码：

import csv

# 处理t1.csv
with open('t1.csv', 'r') as f:
    reader = csv.reader(f)
    data = list(reader)

data.insert(0, ['data', 'name', 'age'])

with open('t1.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerows(data)

# 处理t2.csv
with open('t2.csv', 'r') as f:
    reader = csv.reader(f)
    data = list(reader)

data.insert(0, ['data', 'name', 'age'])

with open('t2.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerows(data)

# 处理t3.csv
with open('t3.csv', 'r') as f:
    reader = csv.reader(f)
    data = list(reader)

data.insert(0, ['data', 'name', 'age'])

with open('t3.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerows(data)

上述代码可以批量处理t1.csv、t2.csv、t3.csv文件，将每个文件的第一行添加data、name、age三列。