通过Pyqt5 python保存文件[重复]
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【中文标题】通过Pyqt5 python保存文件[重复]【英文标题】：saving a file via Pyqt5 python [duplicate] 【发布时间】：2019-03-02 15:06:32 【问题描述】：我已经阅读了几个小时认为该网站并且无法得到正确答案，请帮助我解决我的问题，我仍处于编程的开始步骤:)
我想写一个保存文件的程序！ （作为锻炼的一部分。） 我可以获取文件并可以应用地址，但该过程未应用，我知道在某个地方我必须将路径类转换为 str，但我做不到。我使用 QT Designer for Pyqt5 并且我还包括我的 ui 文件。
from PyQt5.QtWidgets import QApplication, QFileDialog
from PyQt5.uic import loadUi
import sys
def get ():
QFileDialog.getOpenFileNames()
return
def paste ():
QFileDialog.getSaveFileName()
return
def saver ():
global temp
global destination
with open(destination,'w')as file:
file.write(temp)
if __name__ == '__main__':
temp = ''
destination = ''
app = QApplication(sys.argv)
x=loadUi('save.ui')
temp=x.pushButton_2.clicked.connect(get)
address= x.pushButton_3.clicked.connect(paste)
x.pushButton.clicked.connect (saver)
x.show()
sys.exit(app.exec())
我在加载部分用作 save.ui 的 Qt 设计器生成的 UI 文件
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>223</width>
<height>112</height>
</rect>
</property>
<property name="palette">
<palette>
<active>
<colorrole role="WindowText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="Button">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Light">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>128</green>
<blue>191</blue>
</color>
</brush>
</colorrole>
<colorrole role="Midlight">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>106</green>
<blue>159</blue>
</color>
</brush>
</colorrole>
<colorrole role="Dark">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="Mid">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>56</green>
<blue>84</blue>
</color>
</brush>
</colorrole>
<colorrole role="Text">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="BrightText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="ButtonText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="Base">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Shadow">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
<colorrole role="AlternateBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>220</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
</active>
<inactive>
<colorrole role="WindowText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="Button">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Light">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>128</green>
<blue>191</blue>
</color>
</brush>
</colorrole>
<colorrole role="Midlight">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>106</green>
<blue>159</blue>
</color>
</brush>
</colorrole>
<colorrole role="Dark">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="Mid">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>56</green>
<blue>84</blue>
</color>
</brush>
</colorrole>
<colorrole role="Text">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="BrightText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="ButtonText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="Base">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Shadow">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
<colorrole role="AlternateBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>220</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
</inactive>
<disabled>
<colorrole role="WindowText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="Button">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Light">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>128</green>
<blue>191</blue>
</color>
</brush>
</colorrole>
<colorrole role="Midlight">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>106</green>
<blue>159</blue>
</color>
</brush>
</colorrole>
<colorrole role="Dark">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="Mid">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>56</green>
<blue>84</blue>
</color>
</brush>
</colorrole>
<colorrole role="Text">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="BrightText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="ButtonText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>42</green>
<blue>63</blue>
</color>
</brush>
</colorrole>
<colorrole role="Base">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="Shadow">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
<colorrole role="AlternateBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>85</green>
<blue>127</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipBase">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>255</red>
<green>255</green>
<blue>220</blue>
</color>
</brush>
</colorrole>
<colorrole role="ToolTipText">
<brush brushstyle="SolidPattern">
<color alpha="255">
<red>0</red>
<green>0</green>
<blue>0</blue>
</color>
</brush>
</colorrole>
</disabled>
</palette>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QPushButton" name="pushButton_2">
<property name="font">
<font>
<family>MS Shell Dlg 2</family>
<pointsize>9</pointsize>
<weight>9</weight>
<italic>false</italic>
<bold>false</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true">color: rgb(0, 0, 0);
background-color: rgb(255, 170, 0);
font: 75 9pt "MS Shell Dlg 2";</string>
</property>
<property name="text">
<string>Choose a file to copy</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
</widget>
</item>
<item row="3" column="0">
<widget class="QProgressBar" name="progressBar">
<property name="styleSheet">
<string notr="true">color: rgb(255, 255, 255);</string>
</property>
<property name="value">
<number>24</number>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="pushButton">
<property name="styleSheet">
<string notr="true">color: rgb(0, 0, 0);
background-color: rgb(255, 170, 0);
font: 75 9pt "MS Shell Dlg 2";</string>
</property>
<property name="text">
<string>COPY</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QPushButton" name="pushButton_3">
<property name="font">
<font>
<family>MS Shell Dlg 2</family>
<pointsize>9</pointsize>
<weight>9</weight>
<italic>false</italic>
<bold>false</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true">color: rgb(0, 0, 0);
background-color: rgb(255, 170, 0);
font: 75 9pt "MS Shell Dlg 2";</string>
</property>
<property name="text">
<string>Choose a place to paste</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
</widget>
</item>
</layout>
</widget>
</widget>
<resources/>
<connections/>
</ui>
【问题讨论】：
【参考方案1】：试试看：
import sys
from shutil import copyfile # <---
from PyQt5.QtWidgets import QApplication, QFileDialog, QMainWindow
from PyQt5.uic import loadUi
class CopyFiles(QMainWindow):
def __init__(self):
super().__init__()
loadUi('save.ui', self)
self.progressBar.setValue(0)
self.fileNames = ""
self.saveFileName = ""
self.pushButton_2.clicked.connect(self.get)
self.pushButton_3.clicked.connect(self.paste)
self.pushButton.clicked.connect(self.saver)
def get(self):
self.fileName, _ = QFileDialog.getOpenFileName()
print("fileNames", self.fileName)
def paste(self):
self.saveFileName, _ = QFileDialog.getSaveFileName()
print("saveFileName", self.saveFileName)
def saver(self):
if self.saveFileName and self.fileName:
copyfile(self.fileName, self.saveFileName)
self.progressBar.setValue(100)
if __name__ == '__main__':
app = QApplication(sys.argv)
w = CopyFiles()
w.show()
sys.exit(app.exec())
【讨论】：
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