python 实现一个简单的window 任务管理器

import tkinter as tk
from tkinter import ttk
import psutil# 运行此代码前，请确保已经安装了 psutil 库，可以使用 pip install psutil 进行安装。
# 由于获取进程信息可能会受到权限限制，某些进程的信息可能无法获取，代码中已经对可能出现的异常进行了处理。def get_process_info():process_list = []for proc in psutil.process_iter(['pid', 'name', 'memory_percent']):try:pid = proc.info['pid']name = proc.info['name']mem_percent = proc.info['memory_percent']process_list.append((pid, name, f'{mem_percent:.2f}%'))except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):continuereturn process_listdef populate_table():for item in process_table.get_children():process_table.delete(item)processes = get_process_info()for pid, name, mem_percent in processes:mem_value = float(mem_percent.strip('%'))tag = ""if mem_value > 10:tag = "high_mem"elif mem_value > 5:tag = "medium_mem"process_table.insert('', 'end', values=(pid, name, mem_percent), tags=(tag,))# 设置标签样式process_table.tag_configure("high_mem", foreground="red")process_table.tag_configure("medium_mem", foreground="green")def sort_table(column, reverse):data = [(process_table.set(item, column), item) for item in process_table.get_children('')]if column == 'PID':data.sort(key=lambda t: int(t[0]), reverse=reverse)elif column == '内存占用率':data.sort(key=lambda t: float(t[0].strip('%')), reverse=reverse)else:data.sort(key=lambda t: t[0], reverse=reverse)for index, (_, item) in enumerate(data):process_table.move(item, '', index)process_table.heading(column, command=lambda: sort_table(column, not reverse))root = tk.Tk()
root.title("任务管理器")
root.geometry("700x500")
root.configure(bg="#f4f4f9")style = ttk.Style()
style.theme_use('clam')
style.configure('Treeview', background="#e9e9f3", foreground="#333", fieldbackground="#e9e9f3",rowheight=25, font=('Segoe UI', 10))
style.map('Treeview', background=[('selected', '#73a6ff')])
style.configure('Treeview.Heading', background="#d1d1e0", foreground="#333", font=('Segoe UI', 10, 'bold'))columns = ('PID', '进程名称', '内存占用率')
process_table = ttk.Treeview(root, columns=columns, show='headings')
for col in columns:process_table.heading(col, text=col, command=lambda c=col: sort_table(c, False))process_table.column(col, width=200, anchor='center')
process_table.pack(pady=20, padx=20, fill=tk.BOTH, expand=True)populate_table()refresh_button = ttk.Button(root, text="刷新", command=populate_table)
refresh_button.pack(pady=10)root.mainloop()