我想在第二个 split ，

file = open()
dictionary = {}
for linje in filen:
    bites = linje. split()
    month = bites[0]
    temp = bites[0]
    dictionary[month] = temp
print(dictionary)

文件看起来像这样:

Jan,1,2.7
Jan,2,2.8
Jan,3,0.7
Jan,4,1.8
Jan,5,1.2
...... each day every day of the year.

如果我写 split(",")，我的字典中的输出会变成这样:

{Jan : Jan}.

如果我不拆分它会变成这样:

{Jan,1,2.7 : Jan,1,2.7}

我希望它是这样的:

{Jan,1: 2.7}