小甲鱼35讲练习保存文件问题求助
import easygui as gimport os
file_path = g.fileopenbox(default="*.txt")
with open(file_path,encoding="utf-8") as old_file:
title = os.path.basename(file_path)
msg = "文件【%s】的内容如下：" % title
text = old_file.read()+"\n你好"
text_after = g.textbox(msg, title, text)
if text != text_after[:-1]:
# textbox 的返回值会追加一个换行符
choice = g.buttonbox("检测到文件内容发生改变，请选择以下操作：", "警告", ("覆盖保存", "放弃保存", "另存为..."))
if choice == "覆盖保存":
with open(file_path, "w") as old_file:
old_file.write(text_after[:-1])
if choice == "放弃保存":
pass
if choice == "另存为...":
another_path = g.filesavebox(default=".txt")
if os.path.splitext(another_path) != '.txt':
another_path += '.txt'
with open(another_path, "w") as new_file:
new_file.write(text_after[:-1])
原本小甲鱼是要说用fileopenbox会多一个换行符导致文本改变，那是以前版本，现在没有这个问题了，所有我人为的加了一行字符串，让程序接下去运行，我的电脑要运行中文文件要用utf-8编码格式，我加了一个改变编码格式
然后就出bug了，点击覆盖保存，文本里面的冒号不见了，加入的“你好”，只加了“你”，并且要重新打开这个文件的时候报错了
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbf in position 2: invalid start byte
这是为什么 import easygui as g
import os
file_path = g.fileopenbox(default="*.txt")
with open(file_path,encoding="utf-8") as old_file:
title = os.path.basename(file_path)
msg = "文件【%s】的内容如下：" % title
text = old_file.read()+"\n你好"
text_after = g.textbox(msg, title, text)
if text != text_after[:-1]:
# textbox 的返回值会追加一个换行符
choice = g.buttonbox("检测到文件内容发生改变，请选择以下操作：", "警告", ("覆盖保存", "放弃保存", "另存为..."))
if choice == "覆盖保存":
with open(file_path, "w",encoding="utf-8") as old_file: #加上编码方式试试
old_file.write(text_after[:-1])
if choice == "放弃保存":
pass
if choice == "另存为...":
another_path = g.filesavebox(default=".txt")
if os.path.splitext(another_path) != '.txt':
another_path += '.txt'
with open(another_path, "w",encoding="utf-8") as new_file: #还有这里
new_file.write(text_after[:-1])
昨非 发表于 2020-11-10 20:07
可以正常保存打开了，但是保存后加入的“你好”变成了“你”，这个问题是怎么回事 灵魂溢出 发表于 2020-11-10 22:24
可以正常保存打开了，但是保存后加入的“你好”变成了“你”，这个问题是怎么回事
可能是被当作行结束符（\n）处理掉了
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