from tkinter import *
import tkinter.filedialog  # 注意次數(shù)要將文件對話框?qū)?
# 定義一個(gè)處理文件的相關(guān)函數(shù)
def askfile():
    # 從本地選擇一個(gè)文件，并返回文件的目錄
    filename = tkinter.filedialog.askopenfilename()
    if filename != '':
         lb.config(text= filename)
    else:
         lb.config(text='您沒有選擇任何文件')
root = Tk()
root.config(bg='#87CEEB')
root.title("C語言中文網(wǎng)")
root.geometry('400x200+300+300')
root.iconbitmap('C:/Users/Administrator/Desktop/C語言中文網(wǎng)logo.ico')
btn=Button(root,text='選擇文件',relief=RAISED,command=askfile)
btn.grid(row=0,column=0)
lb = Label(root,text='',bg='#87CEEB')
lb.grid(row=0,column=1,padx=5)
# 顯示窗口
root.mainloop()

import tkinter as tk
from tkinter import filedialog
from PIL import Image
def open_img():
    try:
        global img
        filepath = filedialog.askopenfilename() # 打開文件，返回該文件的完整路徑
        filename.set(filepath)
        img = Image.open(filename.get())
    except Exception as e:
        print("您沒有選擇任何文件",e)
def save_png():
    try:
        filetypes = [("PNG","*.png"), ("JPG", "*.jpg"), ("GIF","*.gif"),("txt files","*.txt"),('All files','*')]
        # 返回一個(gè) pathname 文件路徑字符串，如果取消或者關(guān)閉則返回空字符，返回文件如何操作是后續(xù)代碼的事情，
        # 該函數(shù)知識返回選擇文件的文件名字，不具備保存文件的能力
        filenewpath= filedialog.asksaveasfilename(title='保存文件',
                                                filetypes=filetypes,
                                                defaultextension='.png',
                                                initialdir='C:/Users/Administrator/Desktop' )
        path_var.set(filenewpath)
        # 保存文件
        img.save(str(path_var.get()))
    except Exception as e:
        print(e)
window = tk.Tk()
window.title("C語言中文網(wǎng)")
window.geometry('400x200+300+300')
window.iconbitmap('C:/Users/Administrator/Desktop/C語言中文網(wǎng)logo.ico')
filename = tk.StringVar()
path_var = tk.StringVar()
# 定義讀取文件的組件
entry = tk.Entry(window, textvariable=filename)
entry.grid(row=1, column=0, padx=5, pady=5)
tk.Button(window, text='選擇文件', command=open_img).grid(row=1, column=1, padx=5, pady=5)
# 定義保存文件的組件
entry1 = tk.Entry(window, textvariable=path_var)
entry1.grid(row=2, column=0, padx=5, pady=5)
tk.Button(window, text='保存文件', command=save_png).grid(row=2, column=1, padx=5, pady=5)
window.mainloop()

import tkinter as tk
from tkinter import colorchooser
root = tk.Tk()
root.title("顏色選擇")
root.geometry('400x200+300+300')
root.iconbitmap('C:/Users/Administrator/Desktop/C語言中文網(wǎng)logo.ico')
def callback():
    # 打開顏色對話款
    colorvalue = tk.colorchooser.askcolor()
    # 在顏色面板點(diǎn)擊確定后，會在窗口顯示二元組顏色值
    lb.config(text='顏色值:'+ str(colorvalue))
lb=tk.Label(root,text='',font=('宋體',10))
# 將label標(biāo)簽放置在主窗口
lb.pack()
tk.Button(root, text="點(diǎn)擊選擇顏色", command=callback, width=10, bg='#9AC0CD').pack()
# 顯示界面
root.mainloop()

import tkinter.messagebox
result=tkinter.messagebox.askokcancel ("提示"," 你確定要關(guān)閉窗口嗎? ")
# 返回布爾值參數(shù)
print(result)