问题描述
声音应该在 self.scr.mainloop() 之后，但它立即发出声音。
TKinter after 方法立即执行，然后在执行后暂停 3 秒。
我做错了什么？文档说这个函数会在暂停时间之后被调用，但它实际上是在之前发生的。我想在 def __init__(self):
from tkinter import *
from sqlite3 import *
from tkinter import messageBox
import pyttsx3
import time
engine = pyttsx3.init()
voices = engine.getProperty('voices')
engine.setProperty('voice',voices[1].id)
admin_username1 = {"Prasham":"123456","Akshat":"0000"}
costermer_password1 = {"user":"user"}
class store:
def __init__(self):
try:
self.scr.destroy()
self.scr=Tk()
except:
try:
self.scr=Tk()
except:
pass
self.scr.geometry("500x500+500+180")
self.scr.title("Multipurpose Store")
self.scr.maxsize("500","500")
self.scr.minsize("500","500")
frame1 = Frame(self.scr,borderwidth = 3)
frame1.pack(pady = 155)
Label(frame1,text = "Login AS",font = ("Roboto",24),background = "yellow").pack()
b1 = Button(frame1,text = "Admin login",background = "yellow",command=lambda:self.Adminlogin())
b1.pack(padx=25,pady =25,side = LEFT)
b2 = Button(frame1,text = "Customer login",command=lambda:self.Userlogin())
b2.pack(padx=20,side = LEFT)
scr.after(3,self.audio)
self.scr.mainloop()
def audio(self):
engine.say('Hello World')
engine.runAndWait()
def Adminlogin(self):
self.scr.destroy()
self.scr=Tk()
self.scr.geometry("500x500+500+180")
self.scr.title("Multipurpose Store")
self.scr.maxsize("500","500")
Label(self.scr,text = "Login Confermation",24)).place(x=115,y=155)
user = Label(self.scr,text = "Username : ",16))
password = Label(self.scr,text = "Password : ",16))
user.place(x = 125,y = 225)
password.place(x = 125,y = 255 )
uservalue = StringVar()
passvalue = StringVar()
global userentry
global passentry
userentry = Entry(self.scr,textvariable = uservalue)
passentry = Entry(self.scr,textvariable = passvalue,show="*")
userentry.place(x = 255,y =230)
passentry.place(x = 255,y = 265)
b3 = Button(self.scr,text = "Home",command=lambda:self.@R_502_3151@).place(x=430,y=0,height=20,width=70)
b4 = Button(self.scr,text = "login",command=lambda:self.check1()).place(x=250,y=300,width=130)
self.scr.mainloop()
def Userlogin(self):
self.scr.destroy()
self.scr=Tk()
self.scr.geometry("500x500+500+180")
self.scr.title("Multipurpose Store")
self.scr.maxsize("500",y = 255 )
uservalue1 = StringVar()
passvalue1 = StringVar()
global userentry
global passentry
userentry = Entry(self.scr,textvariable = uservalue1)
passentry = Entry(self.scr,textvariable = passvalue1,width=70)
b5 = Button(self.scr,command=lambda:self.check1()).place(x=265,width=100)
b6 = Button(self.scr,text = "New User",command=lambda:self.newuser()).place(x=265,y=327,height=19,width=100)
self.scr.mainloop()
def check1(self):
a = userentry.get()
b = passentry.get()
if a=="" or b=="":
messageBox.showerror('ERROR','Empty Entry is not allowed')
elif a in admin_username1:
if admin_username1[a]==b:
messageBox.showinfo('Login',"You have Successfully Log In\nWelcome " +a)
self.AdminloginGUI()
else:
messageBox.showerror('ERROR','INVALID PASSWORD')
elif a in costermer_password1:
if costermer_password1[a]==b:
messageBox.showinfo('Login',"You have Successfully Log In\nWelcome " +a)
self.UserloginGUI()
else:
messageBox.showerror('ERROR','INVALID PASSWORD')
else:
messageBox.showinfo('ERROR','You are Not Registered Yet')
def AdminloginGUI(self):
self.scr.destroy()
self.scr=Tk()
self.scr.geometry("500x500+500+180")
self.scr.title("Admin")
self.scr.maxsize("500","500")
b3 = Button(self.scr,width=70)
def UserloginGUI(self):
self.scr.destroy()
self.scr=Tk()
self.scr.geometry("500x500+500+180")
self.scr.title("User")
self.scr.maxsize("500",width=70)
def newuser(self):
self.scr.destroy()
self.scr=Tk()
self.scr.geometry("500x500+500+180")
self.scr.title("New User")
self.scr.maxsize("500",width=70)
engine.runAndWait()
store()
解决方法
应该是 self.scr.after(3000,self.audio) 而不是 scr.after(3,self.audio)，因为延迟是以毫秒为单位的。
同时删除 engine.runAndWait() 之前的 store()。