Python-tkinter按钮在执行第一个命令后不执行第二个命令
在下面我的程序的简化版本中,我希望“显示结果”按钮(或代码中的Python-tkinter按钮在执行第一个命令后不执行第二个命令,python,python-3.x,tkinter,Python,Python 3.x,Tkinter,在下面我的程序的简化版本中,我希望“显示结果”按钮(或代码中的resultPage按钮)首先总结用户输入的点,然后将其带到新页面。但是,当我添加了一个函数,该函数将检查计算是否已被处理,并将用户带到一个新页面(def confirm,在代码中),什么都没有发生,我可以看到正在进行计算,但程序不会打开新页面 我想知道你如何修复这个错误 我的代码: from tkinter import * import tkinter.ttk as ttk class CollegeApp(Tk):
resultPage
按钮)首先总结用户输入的点,然后将其带到新页面。但是,当我添加了一个函数,该函数将检查计算是否已被处理,并将用户带到一个新页面(def confirm
,在代码中),什么都没有发生,我可以看到正在进行计算,但程序不会打开新页面
我想知道你如何修复这个错误
我的代码:
from tkinter import *
import tkinter.ttk as ttk
class CollegeApp(Tk):
def __init__(self):
Tk.__init__(self)
container = ttk.Frame(self)
container.pack(side="top", fill="both", expand=True)
self.frames = {}
for F in (StartPage, counterPage):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
self.lift()
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.startMenu()
def startMenu(self):
heading = Label(self, text="College Tournament Points\n Count Software",
font=('Arial', 25))
heading.grid(row=0, column=0, columnspan=2, padx=240, pady=40)
start_Btn = Button(self, text="START", font="Arial 16", width=8, height=2,
command=lambda: self.controller.show_frame(counterPage))
start_Btn.grid(row=1, column=0, columnspan=2, padx=30, pady=5)
exit_Btn = Button(self, text="EXIT", font="Arial 16", width=8, height=2,
command=self.controller.destroy)
exit_Btn.grid(row=2, column=0, columnspan=2, padx=30, pady=5)
def starting_Program(self):
pass
class counterPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def confirm(self):
if self.get_values():
self.controller.show_frame(resultPage)
def get_values(self):
def get_if_int(value):
if value.isnumeric():
return int(value)
return 0
pointsTeam1 = []
pointsTeam1.append(get_if_int(self.team1Points1.get()))
pointsTeam1.append(get_if_int(self.team1Points2.get()))
pointsTeam1.append(get_if_int(self.team1Points3.get()))
pointsTeam1.append(get_if_int(self.team1Points4.get()))
pointsTeam1.append(get_if_int(self.team1Points5.get()))
print(sum(pointsTeam1))
pointsTeam2 = []
pointsTeam2.append(get_if_int(self.team2Points1.get()))
pointsTeam2.append(get_if_int(self.team2Points2.get()))
pointsTeam2.append(get_if_int(self.team2Points3.get()))
pointsTeam2.append(get_if_int(self.team2Points4.get()))
pointsTeam2.append(get_if_int(self.team2Points5.get()))
print(sum(pointsTeam2))
def userEntry(self):
team1label = Label(self, text="Enter points for Team 1: ", font="Arial 20")
team1label.grid(row=0, column=0, pady=10, padx=10)
self.team1Points1 = Entry(self, width=2)
self.team1Points1.grid(row=0, column=1)
self.team1Points2 = Entry(self, width=2)
self.team1Points2.grid(row=0, column=2)
self.team1Points3 = Entry(self, width=2)
self.team1Points3.grid(row=0, column=3)
self.team1Points4 = Entry(self, width=2)
self.team1Points4.grid(row=0, column=4)
self.team1Points5 = Entry(self, width=2)
self.team1Points5.grid(row=0, column=5)
team2label = Label(self, text="Enter points for Team 2: ", font="Arial 20")
team2label.grid(row=1, column=0, pady=10, padx=10)
self.team2Points1 = Entry(self, width=2)
self.team2Points1.grid(row=1, column=1)
self.team2Points2 = Entry(self, width=2)
self.team2Points2.grid(row=1, column=2)
self.team2Points3 = Entry(self, width=2)
self.team2Points3.grid(row=1, column=3)
self.team2Points4 = Entry(self, width=2)
self.team2Points4.grid(row=1, column=4)
self.team2Points5 = Entry(self, width=2)
self.team2Points5.grid(row=1, column=5)
resultBtn = Button(self, text="Show Results", font="Arial 16", height=2, width=8,
command=lambda: self.confirm())
resultBtn.grid(row=4, column=0, sticky=W, pady=245, padx=100)
class resultPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
newlabel = Label(self, text="New Page", font="Arial 20")
newlabel.grid(row=2, column=0, pady=10, padx=10)
if __name__ == '__main__':
pointsTeam1 = []
pointsTeam2 = []
app = CollegeApp()
app.geometry("800x500")
app.resizable(False, False)
app.title('Points Counter')
app.mainloop()
更新
错误<代码>递归错误:由于我无意中将函数<代码>定义确认<代码>的内容加倍到函数<代码>定义获取值<代码>中,因此超出了最大递归深度。该错误不再发生,但是我的问题仍然存在,因为新的问题没有出现在按钮上。在您的
确认方法中,您有以下行:
if self.get_values():
但是,您的get\u values
方法没有任何return
语句,因此该条件将始终失败,因为get\u values
将始终返回None
。因此,首先,添加某种返回语句来传递if
块
另外,CollegeAPP
的构造函数方法中的这一行:
for F in (StartPage, counterPage):
如果这是您想要执行的方法,那么还应该在resultPage
类中包含它。因此:
for F in (StartPage, counterPage, resultPage):
代码中还有很多问题需要解决,但希望这能帮助您实现您想要的功能。在counterPage.getvalues(…)
中,它立即调用自身,导致无限递归。command=lambda:self.confirm()
应该是command=lambda:self.confirm
。您希望将函数设置为命令,而不是调用函数的结果。我已更新了我的问题,错误已修复,但打开新页面的问题仍然存在remaims@Matthias若我去掉那个些括号,计算就不会开始,按钮也就不起作用了。但现在若你们调用userEntry
,它就开始了,如果你按下按钮就不会。是的,它工作了,非常感谢你,我发现了我的错误。我知道我在代码中有很多问题,这只是我第一次使用用户界面创建程序。再次感谢你的帮助!