python f.write()写入文件报错！救救孩子吧！

[(?? . ??)??]

class fileTool:

def __init__(self, filepath):

self.filepath = filepath



def write_file(self,line):

f = open(self.filepath, mode = 'a')

f.write(line)

f.close()



def read_file(self):

f = open(self.filepath, mode = 'r')

lines = f.readlines()

f.close()

return lines

以上是自己定义的类，在下面的代码中有用到。

#line = password + '\n'

line = u'密码：{}, 强度：{}\n'.format(password, password_tool.strength_level)

file_tool.write_file(line)

运行#后面那个line就没问题，运行下面那个复杂一点的就会报错，报错内容是：UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-2: character maps to <undefined>

求大神指导怎么解决，谢谢~！

[doubleHLearn]

可能是你文件编码问题，open方法里加一个参数encoding = 'utf-8'试试