读取文本文档的内容与输入内容一致，但判定不一致

fenshu=0
filename="timu2.txt"
with open(filename)as file_object:
    timu2=file_object.read()
    print("请阅读第二道题并完成选择！")
    print(timu2)
zidaan2=input("请输入答案（例如A）")
filename="daan2.txt"
with open(filename)as file_object:
    daaner=file_object.read()
    str(daaner).strip()
    daaner=len(daaner)
    len(zidaan2)
    if daaner==zidaan2:
        print("正确！")
    else:
        print("错误")

请阅读第二道题并完成选择！

请输入答案（例如A）A
错误

***Repl Closed***