python使用tkinter制作一个可视化的超市收银系统，具备操作界面，期末大作业

from tkinter import * import pyautogui as pg import pickle from tkinter import messagebox import time from tkinter import colorchooser from tkinter import PhotoImage import ttkbootstrap as ttk from ttkbootstrap.constants import * x,y=pg.size() sss=0 ss1=0 def ml0(): global dic,guke_dic,shouyintai_dic,bjys,bjtm f=open('change.dll','rb') dic=pickle.load(f) guke_dic=pickle.load(f) shouyintai_dic=pickle.load(f) bjys=pickle.load(f) bjtm=pickle.load(f) f.close() def ml01(): f=open('change.dll','wb') pickle.dump(dic,f) pickle.dump(guke_dic,f) pickle.dump(shouyintai_dic,f) pickle.dump(bjys,f) pickle.dump(bjtm,f) f.close() def ml1(aaa): global t1,e3 t1=Toplevel(win1) kuan=640 gao=400 jdkuan=int(x/2-kuan/2) jdgao=int(y/2-gao/2) t1.geometry('{}x{}-{}+{}'.format(kuan,gao,jdkuan,jdgao)) l6=Label(t1,bg=ys) l6.place(relx=0.0,rely=0.0,relwidth=1,relheight=1) l7=Label(t1,bg=ys,text='请输入会员卡卡号\n不输入代表无卡',font=('幼圆',25,'bold')) l7.place(relx=0.0,rely=0.0,relwidth=1,relheight=0.3) e3=Entry(t1,bg=ys,font=('华文新魏',40),bd=5) e3.place(relx=0.0,rely=0.3,relwidth=1,relheight=0.3) e3.focus_set() e3.bind('<Return>',ml5) e3.bind('<Escape>',ml1a) b3=Button(t1,text='确定/enter',font=('华文新魏',25),bg=ys,command=lambda:ml5(1),bd=5) b3.place(relx=0.3,rely=0.7,relwidth=0.4,relheight=0.2) def ml1a(event): t1.destroy() def ml2(): a=lb1.curselection() b=lb2.curselection() c=lb3.curselection() d=lb4.curselection() if b!=() or c!=() or d!=(): e=messagebox.showwarning('',' 请选中商品名称进行删除操作 ') if a!=(): a1=a[0] lb1.delete(a) lb2.delete(a1) lb3.delete(a1) lb4.delete(a1) def ml3(event): if e1.get()!='': a=var6.get() if a=='' or a=='无效货号': messagebox.showwarning('',' 请输入有效货号 ') e1.focus_set() else: e2.focus_set() else: messagebox.showwarning('',' 请输入货号 ') e1.focus_set() def ml4(a): global l8,l16,t2,var3,l15 if var1.get()=='': e1.delete(0,END) messagebox.showerror('',' 请先输入商品信息 ') else: t2=Toplevel(win1) kuan=1280 gao=800 jdkuan=int(x/2-kuan/2) jdgao=int(y/2-gao/2) t2.geometry('{}x{}-{}+{}'.format(kuan,gao,jdkuan,jdgao)) l13=Label(t2,bg=ys) l13.place(relx=0.0,rely=0.0,relwidth=1,relheight=1) l8=Label(t2,bg=ys,font=('方正舒体',35)) l8.place(relx=0.0,rely=0.0,relwidth=1,relheight=0.2) l14=Label(t2,bg=ys,font=('方正舒体',40),text='总金额:') l14.place(relx=0.0,rely=0.2,relwidth=0.2,relheight=0.3) var3=StringVar() l15=Label(t2,bg=ys,font=('黑体',80),fg='red',textvariable=var3) l15.place(relx=0.2,rely=0.2,relwidth=0.7,relheight=0.3) var3.set(var1.get()) l16=Label(t2,bg=ys,font=('黑体',35)) l16.place(relx=0.0,rely=0.5,relwidth=1,relheight=0.2) b1=Button(t2,text='添加会员卡/enter',command=lambda:ml1(t2),font=('华文新魏',30),bg=ys,bd=10) b1.place(relx=0.05,rely=0.7,relwidth=0.4,relheight=0.2) b2=Button(t2,text='确认结账/space',font=('华文新魏',30),bg=ys,bd=10,command=lambda:ml10(1)) b2.place(relx=0.55,rely=0.7,relwidth=0.4,relheight=0.2) e6=Entry(t2,bg=ys,bd=0,fg=ys) e6.bind('<space>',ml10) e6.bind('<Return>',ml1) e6.bind('<Escape>',ml41) e6.place(relx=0.0,rely=0.0,relwidth=0.01,relheight=0.01) e6.focus_set() def ml41(event): t2.destroy() def ml5(event): global sss,ss1,var3 ss1=e3.get().strip() try: ss1=int(ss1) if ss1 in guke_dic.keys(): l8.config(text='卡号: '+str(ss1)+' 有效(已享9折优惠)') sss=1 ml8() else: l8.config(text='卡号 '+str(ss1)+' 无效') ss1=0 sss=0 var2.set('') var3.set(var1.get()) l16.config(text='') except: if ss1=='': l8.config(text='无会员卡支付') ss1=0 sss=0 var2.set('') var3.set(var1.get()) l16.config(text='') else: l8.config(text='卡号 '+str(ss1)+' 无效') ss1=0 sss=0 var2.set('') var3.set(var1.get()) l16.config(text='') t1.destroy() def ml6(wx=0): hh=e1.get().strip() sl=e2.get().strip() for i in dic.keys(): if hh==i: try: ll=float(sl) lb1.insert(END,dic[i][0]) lb2.insert(END,float(sl)) lb3.insert(END,dic[i][1]) zj=float(sl)*dic[i][1] lb4.insert(END,zj) lb5.insert(END,hh) e1.delete(0,END) e2.delete(0,END) e1.focus_set() break except: messagebox.showwarning('',' 请输入有效数量 ') e2.focus_set() break def ml7(): a=lb4.get(0,END) b=round(sum(a),2) if b==0: var1.set('') else: var1.set(b) win1.after(200,ml7) def ml8(): global var3 a=round(float(var1.get())*0.9,2) var2.set((a)) var3.set((a)) l16.config(text='原价:'+var1.get()) def ml9(): a=e1.get().strip() if a=='': e1.delete(0,END) var6.set('') else: if a in dic.keys(): var6.set(dic[a][0]) else: var6.set('无效货号') win1.after(200,ml9) def ml10(event): ml11() lb1.delete(0,END) lb2.delete(0,END) lb3.delete(0,END) lb4.delete(0,END) lb5.delete(0,END) e1.delete(0,END) e2.delete(0,END) var1.set('') var2.set('') t2.destroy() def ml11(): global sss,ss1,var3 a=lb1.get(0,END) b=lb2.get(0,END) d=lb5.get(0,END) c=list(zip(a,b,d)) #商品，数量，货号 for i in c: shouyintai_dic[i[2]]=shouyintai_dic.get(i[2],[0,0]) shouyintai_dic[i[2]][0]=i[0] shouyintai_dic[i[2]][1]=shouyintai_dic.get(i[2])[1]+float(i[1]) dic[i[2]][2]=dic[i[2]][2]-float(i[1]) shouyintai_dic['all']=shouyintai_dic.get('all',0)+float(var3.get()) messagebox.showinfo('',' ✨结账成功🎉 ') if sss==0 and ss1==0 and float(var3.get())>=200: k=messagebox.askokcancel('','未持卡顾客一次购物满200元，是否为其发放会员卡？') if k==1: ml19() if sss==1 and ss1!=0: l=guke_dic[ss1][2] c=list(zip(a,b,d)) #商品，数量，货号 for i in c: l[i[2]]=l.get(i[2],[0,0]) l[i[2]][0]=i[0] l[i[2]][1]=l[i[2]][1]+float(i[1]) try: guke_dic[ss1][3]=guke_dic[ss1][3]+float(var3.get()) except: guke_dic[ss1].append(float(var3.get())) print(guke_dic[ss1]) sss=0 ss1=0 ml01() ml0() def ml12(): t4=Toplevel(win1) t4.title('收银台销售总量') kuan=1280 gao=800 jdkuan=int(x/2-kuan/2) jdgao=int(y/2-gao/2) t4.geometry('{}x{}-{}+{}'.format(kuan,gao,jdkuan,jdgao)) l19=Label(t4,bg=ys) l19.place(relx=0.0,rely=0.0,relwidth=1,relheight=1) f6=Frame(t4,bg=ys) f6.place(relx=0.0,rely=0.0,relwidth=1,relheight=1) lb7=Listbox(f6,bg=ys,font=('黑体',20)) lb7.place(relx=0.0,rel