从x.dat解析到x.csv时将字符串更改为特定整数?

使用 replace

with open("x.csv", "w") as fw:
    with open("x.dat", "r") as fr:
        for line in fr:
            new_line = line.replace("::", ",").replace("F", "2").replace("M", "1")
            fw.write(new_line)

使用 re

import re

rep = {
    "F": "2",
    "M": "1",
    "::": ",",
}
rep = dict((re.escape(k), v) for k, v in rep.iteritems())
pattern = re.compile("|".join(rep.keys()))
with open("x.csv", "w") as fw:
    with open("x.dat", "r") as fr:
        for line in fr:
            new_line = pattern.sub(lambda m: rep[re.escape(m.group(0))], line)
            fw.write(new_line)

这应该起作用:

with open("x.dat") as f:
    with open("x.csv", "w") as f1:
        for line in f:
            m= line.split("::")
            if(m[1]=='M'):
                m[1]=1
            else:
                m[1]=2
            for ele in m:
                f1.write(str(ele)+',')