一、参数说明
| 语法 | 作用 |
|---|---|
| cv = tk.stringVar() | 绑定变量 |
| com = ttk.Combobox(root, textvariable=cv) | 创建下拉框 |
| com.pack() | 放置下拉框 |
| com["value"] = ('文本',文本') | 设置下拉数据 |
| com.current(索引) | 设置默认值 |
| demo = com.get() | 变量接受值 |
| com.bind("<>", 函数名) | 下拉数据点击调用函数 |
二、代码示例
import tkinter as tk
from tkinter import ttk
window = tk.Tk()
# 设置窗口大小
winWidth = 600
winHeight = 400
# 获取屏幕分辨率
screenWidth = window.winfo_screenwidth()
screenHeight = window.winfo_screenheight()
x = int((screenWidth - winWidth) / 2)
y = int((screenHeight - winHeight) / 2)
# 设置主窗口标题
window.title("Combobox参数说明")
# 设置窗口初始位置在屏幕居中
window.geometry("%sx%s+%s+%s" % (winWidth, winHeight, x, y))
# 设置窗口图标
window.iconbitmap("./image/icon.ico")
# 设置窗口宽高固定
window.resizable(0, 0)
"""Ttk Combobox 参数.
STANDARD OPTIONS
class, cursor, style, takefocus
WIDGET-SPECIFIC OPTIONS
exportselection, justify, height, postcommand, state,
textvariable, values, width
"""
values = ["红", "黄", "蓝"]
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、效果图
