如何在Python tkinter的Frame组件中添加scrollbar滚动条？

Tkinter 原生普通Frame组件本身不支持滚动功能，你需要通过「Canvas + 内部子Frame + 滚动条」的组合结构实现滚动效果，以下是修改后的完整可运行代码： #

1. 替换原有Frame定义部分 #

将你原来创建fr的代码替换为如下滚动区域结构：

from tkinter import *
from tkinter import messagebox
import urllib.error, urllib.parse ,urllib.request
from bs4 import BeautifulSoup 

b="#0c1231"

root = Tk()
root.title("Stock World")
root.geometry("1350x722+5+5")
root.configure(bg=b)

# ------------------- 新增滚动区域结构 -------------------
# 外层容器（对应原来fr的放置位置）
outer_frame = Frame(root, bg=b)
outer_frame.place(relx=0.01,rely=0.11,width=1310,height=635)

# 绘制画布承载可滚动内容
canvas = Canvas(outer_frame, bg=b, highlightthickness=0)
canvas.pack(side=LEFT, fill=BOTH, expand=YES)

# 绑定垂直滚动条
scrollbar = Scrollbar(outer_frame, orient=VERTICAL, command=canvas.yview)
scrollbar.pack(side=RIGHT, fill=Y)
canvas.configure(yscrollcommand=scrollbar.set)

# 支持鼠标滚轮滚动
def _on_mousewheel(event):
    canvas.yview_scroll(int(-1*(event.delta/120)), "units")
canvas.bind_all("<MouseWheel>", _on_mousewheel)

# 内部可滚动Frame，所有数据Label都挂载到这个组件上
scrollable_fr = Frame(canvas, bg=b)
canvas.create_window((0, 0), window=scrollable_fr, anchor="nw")

# 自动更新滚动区域范围
def update_scrollregion(e):
    canvas.configure(scrollregion=canvas.bbox("all"))
scrollable_fr.bind("<Configure>", update_scrollregion)
# ---------------------------------------------------------

2. 修改数据加载函数 #

调整get_web_result函数，替换Label的父组件，同时新增旧数据清空逻辑避免内容叠加：

def get_web_result():
    # 先清空之前加载的旧数据
    for widget in scrollable_fr.winfo_children():
        widget.destroy()

    for i in range(1,2):
        try:
            lnk="https://www.moneycontrol.com/broker-research/latestResearchReport/"+str(i)
            url = urllib.request.urlopen(lnk)
        except:
            messagebox.showwarning("Notification","Check your internet connection and try again later !!!")
            return

        bs = BeautifulSoup(url,"html.parser")
        tg = bs('tbody')
        
        for line in tg:
            lne = line.text
            with open("stock.txt","w", encoding="utf-8") as fopen:
                fopen.writelines(lne.strip())

    with open("stock.txt","r", encoding="utf-8") as fopen:
        fcontent = fopen.readlines()
    
    x=0.01
    y=0.02
    a=1
    for l in fcontent:
        l = l.strip()
        if len(l)>0:
            # 所有Label的父组件改为scrollable_fr
            if a==1: #date
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.005,rely=y)
            elif a==2: #company
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.09,rely=y)
            elif a==3: #broker
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.20,rely=y)
            elif a==4: #buy or sell
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.31,rely=y)
            elif a==5: #report price
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.38,rely=y)
            elif a==6: #cmp
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.475,rely=y)
            elif a==7: #target price
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.56,rely=y)
            elif a==8: #profit
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.62,rely=y)
            elif a==9: #realized return
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.70,rely=y)
            elif a==10: #sensex return
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.81,rely=y)
            elif a==11:
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.98,rely=y)
            elif a==12:
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.99,rely=y)
            elif a==13:
                lb = Label(scrollable_fr,text=l, font=("arial",10),fg="white",bg=b)
                lb.place(relx=0.99,rely=y)

        a=a+1
        if a == 14:
            y=y+0.03
            a=1

3. 剩余界面代码保持不变 #

你原来的按钮、表头Label代码无需修改，直接保留即可运行。 #

内容的提问来源于stack exchange，提问作者Somesh_Bang