一、參數說明
| 語法 | 作用 |
|---|---|
| cv = tk.stringVar() | 綁定變量 |
| com = ttk.Combobox(root, textvariable=cv) | 創建下拉框 |
| com.pack() | 放置下拉框 |
| com["value"] = ('文本',文本') | 設置下拉數據 |
| com.current(索引) | 設置默認值 |
| demo = com.get() | 變量接受值 |
| com.bind("<>", 函數名) | 下拉數據點擊調用函數 |
二、代碼示例
import tkinter as tk
from tkinter import ttk
window = tk.Tk()
# 設置窗口大小
winWidth = 600
winHeight = 400
# 獲取屏幕分辨率
screenWidth = window.winfo_screenwidth()
screenHeight = window.winfo_screenheight()
x = int((screenWidth - winWidth) / 2)
y = int((screenHeight - winHeight) / 2)
# 設置主窗口標題
window.title("Combobox參數說明")
# 設置窗口初始位置在屏幕居中
window.geometry("%sx%s+%s+%s" % (winWidth, winHeight, x, y))
# 設置窗口圖標
window.iconbitmap("./image/icon.ico")
# 設置窗口寬高固定
window.resizable(0, 0)
"""Ttk Combobox 參數.
STANDARD OPTIONS
class, cursor, style, takefocus
WIDGET-SPECIFIC OPTIONS
exportselection, justify, height, postcommand, state,
textvariable, values, width
"""
values = ["紅", "黃", "藍"]
var = tk.StringVar()
def com():
print(1)
def getValue():
print(var.get())
ttk.Combobox(window, values=values, textvariable = var, postcommand=com).pack()
tk.Button(window, text="get value", width=30, pady=5, command=getValue).pack()
window.mainloop()
三、效果圖
