data = pd.read_csv("data.txt", delim_whitespace=True, names=['CRIM', 'ZN', 'INDUS','CHAS',' NOX','RM','AGE',' DIS',' RAD',' TAX','PTRATIO','B','LSTAT','MEDV'])

for i in range(len(data)):
    if((i + 1) % 2 != 1):
        data["B"][i - 1] = data["CRIM"][i]
        data["LSTAT"][i - 1] = data["ZN"][i]
        data["MEDV"][i - 1] = data["INDUS"][i]
        data = data.drop([i], axis = 0)
data # 查看数据

# 这里是一个注释嗷！

print ('hello word!')