python：tkinter + webview2 初探
python：tkinter + pywebview 初探，简单应用，不是纯粹的 webview应用。
pip install readmdict
pip install pywebview
pip install tkwebview2
安装 MDict 去 MDict | One app for all dictionaries 下载
示例程序 tk_mdx_webview2.py 如下
# -*- coding: utf-8 -*-
import os
import time
import tkinter as tk
from tkinter import filedialog
from tkinter import messagebox
#import webview
from readmdict import MDX # pip install readmdict
import win32com.client # TTS
from tkwebview2.tkwebview2 import WebView2, have_runtime, install_runtime
import clr
clr.AddReference('System.Windows.Forms')
clr.AddReference('System.Threading')
from System.Windows.Forms import Control
from System.Threading import Thread,ApartmentState,ThreadStart
speaker = win32com.client.Dispatch("SAPI.SpVoice")
os.chdir("/MDictPC/doc")
def speak():
""" TTS发音 """
txt = entry.get()
if txt.strip() !='':
speaker.Speak(txt)
def open_mdx():
filetypes = [('mdx file','.mdx')]
file1 = filedialog.askopenfilename(initialdir=".", filetypes=filetypes)
if file1 == '': return
start_time = time.time()
path1 = os.path.dirname(file1)
os.chdir(path1)
global headwords, items
# 加载.mdx文件
fname = os.path.basename(file1)
mdx = MDX(fname)
headwords = [*mdx] # 单词名列表
items = [*mdx.items()] # 释义html源码列表
n = len(headwords)
m = len(items)
end_time = time.time()
print('cost %f second' % (end_time - start_time))
if n == m:
var1.set(f'{fname} 加载成功：共{n}条')
else:
var1.set(f'ERROR:{fname} 加载失败 {n}!={m}')
return
def query(self):
""" 输入英文单词，并查询 """
if not entry.get():
messagebox.showinfo("请先选择词典","输入单词不能为空")
return
txt = entry.get()
if txt.startswith("http://") or txt.startswith("https://"):
frame.load_url(txt)
else:
prefix(txt)
query1(txt)
return
def query1(txt):
""" 查询英文单词 """
global var1, headwords, frame
try:
type(headwords)
except NameError:
messagebox.showinfo("提示", "请先选择词典!")
return
word = txt.lower().encode()
word1 = txt.capitalize().encode() # 第1个字母变大写
try: # 查词，返回单词和html文件
if word in headwords:
wordIndex = headwords.index(word)
else:
wordIndex = headwords.index(word1)
word,html = items[wordIndex]
result = html.decode()
result = result.replace('
2:
listbox.delete(0, tk.END)
word = txt.strip().lower() # 字母变小写
for hw in headwords:
hws = hw.decode().lower()
if hws.startswith(word):
listbox.insert(tk.END, hw.decode())
else:
var1.set(f"{txt} input too short")
def selected(self):
""" 选择列表框 """
try:
index = listbox.curselection()
txt = listbox.get(index,last=None)
query1(txt)
except:
print('listbox index is null.')
def search():
""" 访问http://localhost:???? """
txt = entry.get()
if txt.startswith('http://') or txt.startswith('https://') :
frame.load_url(txt)
else:
prefix(txt)
# main()
# 没有 webview2 runtime 就安装
if not have_runtime():
install_runtime()
root = tk.Tk()
root.title("查询英文单词")
root.geometry("1000x500")
root.resizable(width=True, height=False)
# 输入框布局
frame1 = tk.Frame(root, width=80, height=30)
frame1.pack(side="top")
entry = tk.Entry(frame1, width=50)
entry.pack(side="left", padx=5, pady=2)
entry.bind("", query) # 按下回车,执行查单词
button1 = tk.Button(frame1, text="选择词典", command=open_mdx)
button1.pack(side="left", padx=5, pady=2)
button2 = tk.Button(frame1, text="TTS读单词", command=speak)
button2.pack(side="left", padx=5, pady=2)
button3 = tk.Button(frame1, text="访问http", command=search)
button3.pack(side="left", padx=5, pady=2)
# 退出按钮
quit_btn = tk.Button(frame1, text="退出", fg="red", command=root.quit)
quit_btn.pack(side="right", padx=5, pady=2)
# 显示栏
var1 = tk.StringVar()
label = tk.Label(root,textvariable=var1,fg="purple", font="SimSun 12")
var1.set("请先选择词典")
label.pack()
# 列表框
listbox = tk.Listbox(root, width=25, font="Song 12")
listbox.bind('<>', selected)
listbox.pack(side="left", fill='both')
#create WebView2
frame = WebView2(root, 800, 450)
frame.pack(side='right', padx=10, fill='both', expand=True)
root.mainloop()
运行 python tk_mdx_webview2.py
如果通过 frame.load_html(result) 直接写入 HTML，则不能引用其他本地文件路径。
比如：引用 js, css 等本地资源文件，都无法加载。