文本TXT内容清空并保存文件

冷月仙 · 发表于 2025-4-19 12:11:04

例如上图，多个TXT文件里面都有内容，我想一次将多个TXT里面的内容清空并保留文件（TXT。）
有大哥帮忙看看咋写不

BOR · 发表于 2025-4-19 12:11:05

aipca · 发表于 2025-4-19 12:14:33

写到文件 (路径, { })

BOR · 发表于 2025-4-19 12:16:45

https://f.wss.ink/f/gsxncwy9azo 复制链接到浏览器打开

VX截图_20250419121535.png

import sys
import os
from PyQt6.QtWidgets import (
QApplication, QWidget, QVBoxLayout, QPushButton,
QLabel, QFileDialog, QMessageBox
)
from PyQt6.QtCore import Qt
class TxtCleaner (QWidget):
def __init__ (self):
super ().__init__ ()
self.setWindowTitle ("批量清空 TXT 内容")
self.setFixedSize (400, 180)
self._init_ui ()
def _init_ui (self):
layout = QVBoxLayout ()
layout.setSpacing (15)

self.folder_label = QLabel ("请选择包含 TXT 文件的文件夹")
self.folder_label.setAlignment (Qt.AlignmentFlag.AlignCenter)
layout.addWidget (self.folder_label)

choose_btn = QPushButton ("选择文件夹")
choose_btn.clicked.connect (self.choose_folder)
layout.addWidget (choose_btn)

clear_btn = QPushButton ("一键清空所有 TXT 内容")
clear_btn.clicked.connect (self.clear_txts)
clear_btn.setEnabled (False)
self.clear_btn = clear_btn
layout.addWidget (clear_btn)
self.setLayout (layout)
def choose_folder (self):
folder = QFileDialog.getExistingDirectory (self, "选择文件夹", os.getcwd ())
if folder:
self.folder_path = folder
self.folder_label.setText (f"当前文件夹：{folder}")
self.clear_btn.setEnabled (True)
def clear_txts (self):
txt_files = [
f for f in os.listdir (self.folder_path)
if os.path.isfile (os.path.join (self.folder_path, f)) and f.lower ().endswith (".txt")
]
count = 0
for name in txt_files:
path = os.path.join (self.folder_path, name)
try:

with open (path, "w", encoding="utf-8"):
pass
count += 1
except Exception as e:
print (f"清空失败：{path} -> {e}")
QMessageBox.information (
self, "操作完成",
f"共清空 {count} 个 TXT 文件的内容。"
)
if __name__ == "__main__":
app = QApplication (sys.argv)
window = TxtCleaner ()
window.show ()
sys.exit (app.exec ())

import sys<br />
import os<br />
from PyQt6.QtWidgets import (<br />
    QApplication, QWidget, QVBoxLayout, QPushButton,<br />
    QLabel, QFileDialog, QMessageBox<br />
)<br />
from PyQt6.QtCore import Qt<br />
<br />
class TxtCleaner(QWidget):<br />
    def __init__(self):<br />
        super().__init__()<br />
        self.setWindowTitle("批量清空 TXT 内容")<br />
        self.setFixedSize(400, 180)<br />
        self._init_ui()<br />
<br />
    def _init_ui(self):<br />
        layout = QVBoxLayout()<br />
        layout.setSpacing(15)<br />
<br />
     <br />
        self.folder_label = QLabel("请选择包含 TXT 文件的文件夹")<br />
        self.folder_label.setAlignment(Qt.AlignmentFlag.AlignCenter)<br />
        layout.addWidget(self.folder_label)<br />
<br />
       <br />
        choose_btn = QPushButton("选择文件夹")<br />
        choose_btn.clicked.connect(self.choose_folder)<br />
        layout.addWidget(choose_btn)<br />
<br />
       <br />
        clear_btn = QPushButton("一键清空所有 TXT 内容")<br />
        clear_btn.clicked.connect(self.clear_txts)<br />
        clear_btn.setEnabled(False)<br />
        self.clear_btn = clear_btn<br />
        layout.addWidget(clear_btn)<br />
<br />
        self.setLayout(layout)<br />
<br />
    def choose_folder(self):<br />
        folder = QFileDialog.getExistingDirectory(self, "选择文件夹", os.getcwd())<br />
        if folder:<br />
            self.folder_path = folder<br />
            self.folder_label.setText(f"当前文件夹：{folder}")<br />
            self.clear_btn.setEnabled(True)<br />
<br />
    def clear_txts(self):<br />
        txt_files = [<br />
            f for f in os.listdir(self.folder_path)<br />
            if os.path.isfile(os.path.join(self.folder_path, f)) and f.lower().endswith(".txt")<br />
        ]<br />
        count = 0<br />
        for name in txt_files:<br />
            path = os.path.join(self.folder_path, name)<br />
            try:<br />
               <br />
                with open(path, "w", encoding="utf-8"):<br />
                    pass<br />
                count += 1<br />
            except Exception as e:<br />
                print(f"清空失败：{path} -> {e}")<br />
<br />
        QMessageBox.information(<br />
            self, "操作完成",<br />
            f"共清空 {count} 个 TXT 文件的内容。"<br />
        )<br />
<br />
if __name__ == "__main__":<br />
    app = QApplication(sys.argv)<br />
    window = TxtCleaner()<br />
    window.show()<br />
    sys.exit(app.exec())

BOR · 发表于 2025-4-19 12:17:05

import sys
import os
from PyQt6.QtWidgets import (
QApplication, QWidget, QVBoxLayout, QPushButton,
QLabel, QFileDialog, QMessageBox
)
from PyQt6.QtCore import Qt
class TxtCleaner (QWidget):
def __init__ (self):
super ().__init__ ()
self.setWindowTitle ("批量清空 TXT 内容")
self.setFixedSize (400, 180)
self._init_ui ()
def _init_ui (self):
layout = QVBoxLayout ()
layout.setSpacing (15)

self.folder_label = QLabel ("请选择包含 TXT 文件的文件夹")
self.folder_label.setAlignment (Qt.AlignmentFlag.AlignCenter)
layout.addWidget (self.folder_label)

choose_btn = QPushButton ("选择文件夹")
choose_btn.clicked.connect (self.choose_folder)
layout.addWidget (choose_btn)

clear_btn = QPushButton ("一键清空所有 TXT 内容")
clear_btn.clicked.connect (self.clear_txts)
clear_btn.setEnabled (False)
self.clear_btn = clear_btn
layout.addWidget (clear_btn)
self.setLayout (layout)
def choose_folder (self):
folder = QFileDialog.getExistingDirectory (self, "选择文件夹", os.getcwd ())
if folder:
self.folder_path = folder
self.folder_label.setText (f"当前文件夹：{folder}")
self.clear_btn.setEnabled (True)
def clear_txts (self):
txt_files = [
f for f in os.listdir (self.folder_path)
if os.path.isfile (os.path.join (self.folder_path, f)) and f.lower ().endswith (".txt")
]
count = 0
for name in txt_files:
path = os.path.join (self.folder_path, name)
try:

with open (path, "w", encoding="utf-8"):
pass
count += 1
except Exception as e:
print (f"清空失败：{path} -> {e}")
QMessageBox.information (
self, "操作完成",
f"共清空 {count} 个 TXT 文件的内容。"
)
if __name__ == "__main__":
app = QApplication (sys.argv)
window = TxtCleaner ()
window.show ()
sys.exit (app.exec ())

import sys<br />
import os<br />
from PyQt6.QtWidgets import (<br />
    QApplication, QWidget, QVBoxLayout, QPushButton,<br />
    QLabel, QFileDialog, QMessageBox<br />
)<br />
from PyQt6.QtCore import Qt<br />
<br />
class TxtCleaner(QWidget):<br />
    def __init__(self):<br />
        super().__init__()<br />
        self.setWindowTitle("批量清空 TXT 内容")<br />
        self.setFixedSize(400, 180)<br />
        self._init_ui()<br />
<br />
    def _init_ui(self):<br />
        layout = QVBoxLayout()<br />
        layout.setSpacing(15)<br />
<br />
     <br />
        self.folder_label = QLabel("请选择包含 TXT 文件的文件夹")<br />
        self.folder_label.setAlignment(Qt.AlignmentFlag.AlignCenter)<br />
        layout.addWidget(self.folder_label)<br />
<br />
       <br />
        choose_btn = QPushButton("选择文件夹")<br />
        choose_btn.clicked.connect(self.choose_folder)<br />
        layout.addWidget(choose_btn)<br />
<br />
       <br />
        clear_btn = QPushButton("一键清空所有 TXT 内容")<br />
        clear_btn.clicked.connect(self.clear_txts)<br />
        clear_btn.setEnabled(False)<br />
        self.clear_btn = clear_btn<br />
        layout.addWidget(clear_btn)<br />
<br />
        self.setLayout(layout)<br />
<br />
    def choose_folder(self):<br />
        folder = QFileDialog.getExistingDirectory(self, "选择文件夹", os.getcwd())<br />
        if folder:<br />
            self.folder_path = folder<br />
            self.folder_label.setText(f"当前文件夹：{folder}")<br />
            self.clear_btn.setEnabled(True)<br />
<br />
    def clear_txts(self):<br />
        txt_files = [<br />
            f for f in os.listdir(self.folder_path)<br />
            if os.path.isfile(os.path.join(self.folder_path, f)) and f.lower().endswith(".txt")<br />
        ]<br />
        count = 0<br />
        for name in txt_files:<br />
            path = os.path.join(self.folder_path, name)<br />
            try:<br />
               <br />
                with open(path, "w", encoding="utf-8"):<br />
                    pass<br />
                count += 1<br />
            except Exception as e:<br />
                print(f"清空失败：{path} -> {e}")<br />
<br />
        QMessageBox.information(<br />
            self, "操作完成",<br />
            f"共清空 {count} 个 TXT 文件的内容。"<br />
        )<br />
<br />
if __name__ == "__main__":<br />
    app = QApplication(sys.argv)<br />
    window = TxtCleaner()<br />
    window.show()<br />
    sys.exit(app.exec())