把SMSSpamCollectioncsv中labels一列的0换成ham1换成spam

可以使用Python的pandas库来实现：

import pandas as pd

# 读取csv文件
df = pd.read_csv('SMSSpamCollection.csv', sep='\t', header=None, names=['label', 'text'])

# 将0换成ham，1换成spam
df['label'] = df['label'].apply(lambda x: 'ham' if x == 0 else 'spam')

# 输出结果
print(df.head())

输出结果类似于：

  label                                               text
0   ham  Go until jurong point, crazy.. Available only ...
1   ham                      Ok lar... Joking wif u oni...
2  spam  Free entry in 2 a wkly comp to win FA Cup fina...
3   ham  U dun say so early hor... U c already then say...
4   ham  Nah I don't think he goes to usf, he lives aro...
``