# -*- coding: utf-8 -*-

import difflib

def diff_str(text1, text2, _type):

    text1_lines = text1.splitlines()  # 以行进行分隔，以便进行对比

    text2_lines = text2.splitlines()

    if _type == "str":

        d = difflib.Differ()    # 创建Differ()对象

        diff = d.compare(text1_lines, text2_lines)    # 采用compare方法对字符串进行比较

        return '\n'.join(list(diff))

    else:

        d = difflib.HtmlDiff()

        return d.make_file(text1_lines, text2_lines)