使用 Python构建 Windows 进程管理器应用程序

winfredzhang2024-08-21 19:41

在这篇博客中，我们将探讨如何使用 wxPython 构建一个简单的 Windows 进程管理器应用程序。这个应用程序允许用户列出当前系统上的所有进程，选择和终止进程，并将特定进程保存到文件中以供将来加载。

C:\pythoncode\new\manageprocess.py

全部代码

python 复制代码 
import wx
import psutil
import os
import signal

class ProcessManager(wx.Frame):
    def __init__(self, parent, title):
        super(ProcessManager,self).__init__(parent, title=title, size=(800, 500))

        self.panel = wx.Panel(self)

        self.search_box = wx.TextCtrl(self.panel, style=wx.TE_PROCESS_ENTER)
        self.Bind(wx.EVT_TEXT_ENTER, self.OnSearchProcess, self.search_box)

        self.btn_list_processes = wx.Button(self.panel, label='List All Processes')

        # Create ListView1 with a checkbox column
        self.process_listview = wx.ListView(self.panel, style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
        self.process_listview.InsertColumn(0, '', width=40)  # Checkbox column
        self.process_listview.InsertColumn(1, 'Process Name', width=200)
        self.process_listview.InsertColumn(2, 'PID', width=100)
        self.process_listview.InsertColumn(3, 'CPU %', width=100)
        self.process_listview.InsertColumn(4, 'RAM %', width=100)

        self.selected_listview = wx.ListView(self.panel, style=wx.LC_REPORT)
        self.selected_listview.InsertColumn(0, 'Process Name', width=200)
        self.selected_listview.InsertColumn(1, 'PID', width=100)

        self.btn_select_all = wx.Button(self.panel, label='Select All')
        self.btn_deselect_all = wx.Button(self.panel, label='Deselect All')
        self.btn_add_to_listview2 = wx.Button(self.panel, label='Add to ListView2')
        self.btn_kill_processes = wx.Button(self.panel, label='Kill Selected Processes')
        self.btn_kill_by_name = wx.Button(self.panel, label='Kill by Name')
        self.btn_save = wx.Button(self.panel, label='Save')
        self.btn_load = wx.Button(self.panel, label='Load')
        self.btn_delete_selected = wx.Button(self.panel, label='Delete Selected')

        # Organize layout with BoxSizers
        main_sizer = wx.BoxSizer(wx.VERTICAL)
        search_sizer = wx.BoxSizer(wx.HORIZONTAL)
        listview1_sizer = wx.BoxSizer(wx.VERTICAL)
        button_sizer = wx.BoxSizer(wx.HORIZONTAL)
        listview2_sizer = wx.BoxSizer(wx.VERTICAL)

        search_sizer.Add(self.search_box, 1, wx.EXPAND | wx.ALL, 5)
        search_sizer.Add(self.btn_list_processes, 0, wx.EXPAND | wx.ALL, 5)

        listview1_sizer.Add(search_sizer, 0, wx.EXPAND | wx.ALL, 5)
        listview1_sizer.Add(self.process_listview, 1, wx.EXPAND | wx.ALL, 5)

        button_sizer.Add(self.btn_select_all, 0, wx.EXPAND | wx.ALL, 5)
        button_sizer.Add(self.btn_deselect_all, 0, wx.EXPAND | wx.ALL, 5)
        button_sizer.Add(self.btn_add_to_listview2, 0, wx.EXPAND | wx.ALL, 5)

        listview1_sizer.Add(button_sizer, 0, wx.ALIGN_CENTER | wx.ALL, 5)

        listview2_sizer.Add(self.selected_listview, 1, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_kill_processes, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_kill_by_name, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_save, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_load, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_delete_selected, 0, wx.EXPAND | wx.ALL, 5)

        main_sizer.Add(listview1_sizer, 1, wx.EXPAND | wx.ALL, 5)
        main_sizer.Add(listview2_sizer, 1, wx.EXPAND | wx.ALL, 5)

        self.panel.SetSizer(main_sizer)

        self.Bind(wx.EVT_BUTTON, self.OnListProcesses, self.btn_list_processes)
        self.Bind(wx.EVT_BUTTON, self.OnKillProcesses, self.btn_kill_processes)
        self.Bind(wx.EVT_BUTTON, self.OnKillProcessesByName, self.btn_kill_by_name)
        self.Bind(wx.EVT_BUTTON, self.OnSaveProcesses, self.btn_save)
        self.Bind(wx.EVT_BUTTON, self.OnLoadProcesses, self.btn_load)
        self.Bind(wx.EVT_BUTTON, self.OnSelectAll, self.btn_select_all)
        self.Bind(wx.EVT_BUTTON, self.OnDeselectAll, self.btn_deselect_all)
        self.Bind(wx.EVT_BUTTON, self.OnAddToListView2, self.btn_add_to_listview2)
        self.Bind(wx.EVT_BUTTON, self.OnDeleteSelected, self.btn_delete_selected)

        self.Show()

    def OnListProcesses(self,event):
        self.process_listview.DeleteAllItems()
        for proc in psutil.process_iter(['pid', 'name', 'cpu_percent', 'memory_percent']):
            index = self.process_listview.InsertItem(self.process_listview.GetItemCount(), '')
            self.process_listview.SetItem(index, 1, proc.info['name'])
            self.process_listview.SetItem(index, 2, str(proc.info['pid']))
            self.process_listview.SetItem(index, 3, f"{proc.info['cpu_percent']:.1f}")
            self.process_listview.SetItem(index, 4, f"{proc.info['memory_percent']:.1f}")

    def OnSearchProcess(self,event):
        search_query = self.search_box.GetValue().lower()
        self.process_listview.DeleteAllItems()
        for proc in psutil.process_iter(['pid', 'name', 'cpu_percent', 'memory_percent']):
            if search_query in proc.info['name'].lower():
                index = self.process_listview.InsertItem(self.process_listview.GetItemCount(), '')
                self.process_listview.SetItem(index, 1, proc.info['name'])
                self.process_listview.SetItem(index, 2, str(proc.info['pid']))
                self.process_listview.SetItem(index, 3, f"{proc.info['cpu_percent']:.1f}")
                self.process_listview.SetItem(index, 4, f"{proc.info['memory_percent']:.1f}")

    def OnKillProcesses(self,event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            if self.process_listview.GetItemState(i, wx.LIST_STATE_SELECTED):
                pid = int(self.process_listview.GetItemText(i, 2))
                try:
                    os.kill(pid, signal.SIGTERM)
                except Exception as e:
                    wx.MessageBox(f"Error killing process {pid}: {str(e)}", "Error", wx.OK | wx.ICON_ERROR)
        self.OnListProcesses(event)

    def OnKillProcessesByName(self,event):
        process_names = [self.selected_listview.GetItemText(i) for i in range(self.selected_listview.GetItemCount())]
        for proc in psutil.process_iter(['name', 'pid']):
            if proc.info['name'] in process_names:
                try:
                    os.kill(proc.info['pid'], signal.SIGTERM)
                except Exception as e:
                    wx.MessageBox(f"Error killing process {proc.info['pid']}: {str(e)}", "Error", wx.OK | wx.ICON_ERROR)

    def OnSaveProcesses(self,event):
        with open("processes.txt","w") as file:
            count = self.selected_listview.GetItemCount()
            for i in range(count):
                process_name = self.selected_listview.GetItemText(i)
                process_pid = self.selected_listview.GetItemText(i, 1)
                file.write(f"{process_name},{process_pid}\n")

    def OnLoadProcesses(self,event):
        self.selected_listview.DeleteAllItems()
        if os.path.exists("processes.txt"):
            with open("processes.txt","r") as file:
                for line in file:
                    process_name, process_pid = line.strip().split(',')
                    index = self.selected_listview.InsertItem(self.selected_listview.GetItemCount(), process_name)
                    self.selected_listview.SetItem(index, 1, process_pid)

    def OnSelectAll(self,event): 
        count = self.process_listview.GetItemCount()
        for i in range(count):
            self.process_listview.SetItemState(i, wx.LIST_STATE_SELECTED, wx.LIST_STATE_SELECTED)

    def OnDeselectAll(self,event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            self.process_listview.SetItemState(i, 0, wx.LIST_STATE_SELECTED)

    def OnAddToListView2(self,event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            if self.process_listview.GetItemState(i, wx.LIST_STATE_SELECTED):
                process_name = self.process_listview.GetItemText(i, 1)
                process_pid = self.process_listview.GetItemText(i, 2)
                index = self.selected_listview.InsertItem(self.selected_listview.GetItemCount(), process_name)
                self.selected_listview.SetItem(index, 1, process_pid)

    def OnDeleteSelected(self,event):
        count = self.selected_listview.GetItemCount()
        for i in range(count - 1, -1, -1):
            if self.selected_listview.GetItemState(i, wx.LIST_STATE_SELECTED):
                self.selected_listview.DeleteItem(i)

if __name__ == "__main__":
    app = wx.App(False)
    frame = ProcessManager(None, "Process Manager")
    app.MainLoop()

项目概述

我们的目标是构建一个图形用户界面 (GUI) 应用程序，主要功能包括：

  1. 列出所有进程：列出当前系统上的所有进程，并显示进程名、PID、CPU 和内存占用情况。
  2. 搜索进程：通过输入框搜索指定进程名称，并显示匹配结果。
  3. 选择和终止进程：通过复选框选择多个进程并终止它们。
  4. 保存和加载进程列表：将选定的进程保存到文本文件中，并从文件加载这些进程。
  5. 进程管理：添加功能来按名称终止进程，并从列表中删除选中的项。

准备工作

在开始之前，确保你已经安装了 Python 和 wxPython。你可以通过以下命令安装 wxPython：

bash 复制代码 
pip install wxPython

构建应用程序

下面是我们将要实现的完整代码。你可以直接复制到你的 IDE 中并运行。

python 复制代码 
import wx
import psutil
import os
import signal

class ProcessManager(wx.Frame):
    def __init__(self, parent, title):
        super(ProcessManager, self).__init__(parent, title=title, size=(800, 500))

        self.panel = wx.Panel(self)

        # 搜索框
        self.search_box = wx.TextCtrl(self.panel, style=wx.TE_PROCESS_ENTER)
        self.Bind(wx.EVT_TEXT_ENTER, self.OnSearchProcess, self.search_box)

        # 列出所有进程按钮
        self.btn_list_processes = wx.Button(self.panel, label='List All Processes')

        # 创建 ListView1 并添加复选框列
        self.process_listview = wx.ListView(self.panel, style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
        self.process_listview.InsertColumn(0, '', width=40)  # 复选框列
        self.process_listview.InsertColumn(1, 'Process Name', width=200)
        self.process_listview.InsertColumn(2, 'PID', width=100)
        self.process_listview.InsertColumn(3, 'CPU %', width=100)
        self.process_listview.InsertColumn(4, 'RAM %', width=100)

        self.selected_listview = wx.ListView(self.panel, style=wx.LC_REPORT)
        self.selected_listview.InsertColumn(0, 'Process Name', width=200)
        self.selected_listview.InsertColumn(1, 'PID', width=100)

        # 各种功能按钮
        self.btn_select_all = wx.Button(self.panel, label='Select All')
        self.btn_deselect_all = wx.Button(self.panel, label='Deselect All')
        self.btn_add_to_listview2 = wx.Button(self.panel, label='Add to ListView2')
        self.btn_kill_processes = wx.Button(self.panel, label='Kill Selected Processes')
        self.btn_kill_by_name = wx.Button(self.panel, label='Kill by Name')
        self.btn_save = wx.Button(self.panel, label='Save')
        self.btn_load = wx.Button(self.panel, label='Load')
        self.btn_delete_selected = wx.Button(self.panel, label='Delete Selected')

        # 使用 BoxSizers 组织布局
        main_sizer = wx.BoxSizer(wx.VERTICAL)
        search_sizer = wx.BoxSizer(wx.HORIZONTAL)
        listview1_sizer = wx.BoxSizer(wx.VERTICAL)
        button_sizer = wx.BoxSizer(wx.HORIZONTAL)
        listview2_sizer = wx.BoxSizer(wx.VERTICAL)

        # 将搜索框和按钮添加到布局中
        search_sizer.Add(self.search_box, 1, wx.EXPAND | wx.ALL, 5)
        search_sizer.Add(self.btn_list_processes, 0, wx.EXPAND | wx.ALL, 5)

        # 将 ListView1 和按钮添加到布局中
        listview1_sizer.Add(search_sizer, 0, wx.EXPAND | wx.ALL, 5)
        listview1_sizer.Add(self.process_listview, 1, wx.EXPAND | wx.ALL, 5)

        button_sizer.Add(self.btn_select_all, 0, wx.EXPAND | wx.ALL, 5)
        button_sizer.Add(self.btn_deselect_all, 0, wx.EXPAND | wx.ALL, 5)
        button_sizer.Add(self.btn_add_to_listview2, 0, wx.EXPAND | wx.ALL, 5)

        listview1_sizer.Add(button_sizer, 0, wx.ALIGN_CENTER | wx.ALL, 5)

        # 将 ListView2 和其他按钮添加到布局中
        listview2_sizer.Add(self.selected_listview, 1, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_kill_processes, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_kill_by_name, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_save, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_load, 0, wx.EXPAND | wx.ALL, 5)
        listview2_sizer.Add(self.btn_delete_selected, 0, wx.EXPAND | wx.ALL, 5)

        main_sizer.Add(listview1_sizer, 1, wx.EXPAND | wx.ALL, 5)
        main_sizer.Add(listview2_sizer, 1, wx.EXPAND | wx.ALL, 5)

        self.panel.SetSizer(main_sizer)

        # 绑定事件处理
        self.Bind(wx.EVT_BUTTON, self.OnListProcesses, self.btn_list_processes)
        self.Bind(wx.EVT_BUTTON, self.OnKillProcesses, self.btn_kill_processes)
        self.Bind(wx.EVT_BUTTON, self.OnKillProcessesByName, self.btn_kill_by_name)
        self.Bind(wx.EVT_BUTTON, self.OnSaveProcesses, self.btn_save)
        self.Bind(wx.EVT_BUTTON, self.OnLoadProcesses, self.btn_load)
        self.Bind(wx.EVT_BUTTON, self.OnSelectAll, self.btn_select_all)
        self.Bind(wx.EVT_BUTTON, self.OnDeselectAll, self.btn_deselect_all)
        self.Bind(wx.EVT_BUTTON, self.OnAddToListView2, self.btn_add_to_listview2)
        self.Bind(wx.EVT_BUTTON, self.OnDeleteSelected, self.btn_delete_selected)

        self.Show()

    def OnListProcesses(self, event):
        self.process_listview.DeleteAllItems()
        for proc in psutil.process_iter(['pid', 'name', 'cpu_percent', 'memory_percent']):
            index = self.process_listview.InsertItem(self.process_listview.GetItemCount(), '')
            self.process_listview.SetItem(index, 1, proc.info['name'])
            self.process_listview.SetItem(index, 2, str(proc.info['pid']))
            self.process_listview.SetItem(index, 3, f"{proc.info['cpu_percent']:.1f}")
            self.process_listview.SetItem(index, 4, f"{proc.info['memory_percent']:.1f}")

    def OnSearchProcess(self, event):
        search_query = self.search_box.GetValue().lower()
        self.process_listview.DeleteAllItems()
        for proc in psutil.process_iter(['pid', 'name', 'cpu_percent', 'memory_percent']):
            if search_query in proc.info['name'].lower():
                index = self.process_listview.InsertItem(self.process_listview.GetItemCount(), '')
                self.process_listview.SetItem(index, 1, proc.info['name'])
                self.process_listview.SetItem(index, 2, str(proc.info['pid']))
                self.process_listview.SetItem(index, 3, f"{proc.info['cpu_percent']:.1f}")
                self.process_listview.SetItem(index, 4, f"{proc.info['memory_percent']:.1f}")

    def OnKillProcesses(self, event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            if self.process_listview.GetItemState(i, wx.LIST_STATE_SELECTED):
                pid = int(self.process_listview.GetItemText(i, 2))
                try:
                    os.kill(pid, signal.SIGTERM)
                except Exception as e:
                    wx.MessageBox(f"Error killing process {pid}: {str(e)}", "Error", wx.OK | wx.ICON_ERROR)
        self.OnListProcesses(event)

    def OnKillProcessesByName(self, event):
        process_names = [self.selected_listview.GetItemText(i) for i in range(self.selected_listview.GetItemCount())]
        for proc in psutil.process_iter(['name', 'pid']):
            if proc.info['name'] in process_names:
                try:
                    os.kill(proc.info['pid'], signal.SIGTERM)
                except Exception as e:
                    wx.MessageBox(f"Error killing process {proc.info['pid']}: {str(e)}", "Error", wx.OK | wx.ICON_ERROR)

    def OnSaveProcesses(self, event):
        with open

('saved_processes.txt', 'w') as f:
            for i in range(self.selected_listview.GetItemCount()):
                process_name = self.selected_listview.GetItemText(i)
                process_pid = self.selected_listview.GetItemText(i, 1)
                f.write(f"{process_name},{process_pid}\n")

    def OnLoadProcesses(self, event):
        self.selected_listview.DeleteAllItems()
        try:
            with open('saved_processes.txt', 'r') as f:
                for line in f.readlines():
                    process_name, process_pid = line.strip().split(',')
                    index = self.selected_listview.InsertItem(self.selected_listview.GetItemCount(), process_name)
                    self.selected_listview.SetItem(index, 1, process_pid)
        except FileNotFoundError:
            wx.MessageBox("No saved processes found.", "Error", wx.OK | wx.ICON_ERROR)

    def OnSelectAll(self, event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            self.process_listview.CheckItem(i)

    def OnDeselectAll(self, event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            self.process_listview.CheckItem(i, False)

    def OnAddToListView2(self, event):
        count = self.process_listview.GetItemCount()
        for i in range(count):
            if self.process_listview.IsItemChecked(i):
                process_name = self.process_listview.GetItemText(i, 1)
                process_pid = self.process_listview.GetItemText(i, 2)
                index = self.selected_listview.InsertItem(self.selected_listview.GetItemCount(), process_name)
                self.selected_listview.SetItem(index, 1, process_pid)

    def OnDeleteSelected(self, event):
        count = self.selected_listview.GetItemCount()
        for i in range(count - 1, -1, -1):
            if self.selected_listview.GetItemState(i, wx.LIST_STATE_SELECTED):
                self.selected_listview.DeleteItem(i)

if __name__ == "__main__":
    app = wx.App(False)
    frame = ProcessManager(None, "Process Manager")
    app.MainLoop()

代码解释

1. 初始化界面

在 ProcessManager 类的 __init__ 方法中，我们设置了窗口的基本布局，并添加了所有必要的控件，包括 ListView、按钮和搜索框。我们还绑定了所有按钮的事件处理方法。

2. 列出所有进程

在 OnListProcesses 方法中，我们使用 psutil.process_iter 获取所有正在运行的进程，并将它们显示在 ListView1 中。我们显示了进程名称、PID、CPU 使用率和内存使用率。

3. 搜索进程

OnSearchProcess 方法通过搜索框输入的内容进行过滤，并在 ListView1 中显示匹配的进程。

4. 选择和终止进程

我们可以使用复选框选择一个或多个进程，并通过 OnKillProcesses 和 OnKillProcessesByName 方法终止它们。

5. 保存和加载进程列表

OnSaveProcesses 方法将选中的进程保存到一个文本文件中，而 OnLoadProcesses 方法则从文件加载这些进程并显示在 ListView2 中。

6. 全选和全不选

通过 OnSelectAll 和 OnDeselectAll 方法，我们可以选择或取消选择 ListView1 中的所有项。

效果如下

总结

这个小型的进程管理器应用程序展示了如何使用 wxPython 构建一个功能强大的桌面应用。通过整合 psutil 和 wxPython，我们可以轻松地管理和监控系统进程，为用户提供了便捷的工具。

你可以进一步扩展这个应用程序，例如添加更多的进程管理功能，或者优化界面布局和用户体验。希望这篇博客对你有所帮助，并激发你在 Python 开发中的更多创意！

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