为什么在python中使用tkinter将打印时的输入表示为对象?
我正在编写一个程序,将技能名称作为文本输入,并计算输入的所有技能的相应值。当我在程序中输入一项技能,然后将该技能打印到shell时,它会显示为一个对象吗?为什么会发生这种情况?我如何修复它?我需要repr还是str?为什么清除文本输入的delete方法也不起作用为什么在python中使用tkinter将打印时的输入表示为对象?,python,python-3.x,tkinter,representation,tkinter-entry,Python,Python 3.x,Tkinter,Representation,Tkinter Entry,我正在编写一个程序,将技能名称作为文本输入,并计算输入的所有技能的相应值。当我在程序中输入一项技能,然后将该技能打印到shell时,它会显示为一个对象吗?为什么会发生这种情况?我如何修复它?我需要repr还是str?为什么清除文本输入的delete方法也不起作用 import tkinter as tk from tkinter import ttk #make the lists to store the skill names floorEle1Skills = [] class sta
import tkinter as tk
from tkinter import ttk
#make the lists to store the skill names
floorEle1Skills = []
class startValue(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.wm_title(self, "Start Value Calculator")
tk.Tk.minsize(self, width = 350, height = 300)
container = tk.Frame(self)
container.pack(side = 'top', fill = 'both', expand = True)
container.grid_rowconfigure(0, weight = 1)
container.grid_columnconfigure(0, weight = 1)
self.frames = {}
for f in (startPage, floorPage, pommelPage, ringsPage, vaultPage, pbarsPage, hbarPage):
frame = f(container, self)
self.frames[f] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.showFrame(startPage)
#make the lists to store the skill names
floorEle1Skills = []
def showFrame(self, cont):
frame = self.frames[cont]
frame.tkraise()
def floorEle1(skill):
floorEle1Skills.append(skill)
#clear the text entry
#ele1Entry.delete(0, tk.END)
#why doesnt this work???
#why is it printed as an object??
print(floorEle1Skills)
class startPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Select Event")
label.pack(pady = 10, padx = 10)
floorButton = ttk.Button(self, text = "Floor", command = lambda : controller.showFrame(floorPage))
floorButton.pack()
class floorPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Floor")
label.pack(pady = 10, padx = 10)
#make the entries and labels
ele1Label = tk.Label(self, text = "Element Group 1:")
ele1Label.pack()
skill1 = tk.StringVar()
ele1Entry = tk.Entry(self, textvariable = skill1)
ele1Entry.pack()
ele1Button = ttk.Button(self, text = "Add", command = lambda : controller.floorEle1())
ele1Button.pack()
startButton = ttk.Button(self, text = "Back to Start", command = lambda : controller.showFrame(startPage))
startButton.pack(side = 'bottom')
欢迎使用Python。问题出在函数
1(技能)
中。这是类startValue
的成员函数,但参数列表并非以self
开头。Python不会强制您命名第一个变量self
;实际上,你可以给它取任何你想要的名字(但不要这样做!)。因此,在这个函数中,名为skill
的变量的作用与变量self
一样。
就好像你写过这样的话:
def floorEle1(self):
floorEle1Skills.append(self)
#clear the text entry
#ele1Entry.delete(0, tk.END)
#why doesnt this work???
#why is it printed as an object??
print(floorEle1Skills)
我想您现在可以看到,您的代码实际上是将
self
附加到FloorRele1Skills;i、 例如,添加主窗口的实例!因此,当您打印列表时,print语句显示列表包含一个对象。正如在另一个答案中已经提到的,代码的问题使函数floorel1(self,skill)
,但是。。。还有一些其他问题需要妥善解决,以便将输入的技能传递到技能列表中(参见下面的代码):
守则的其他修订如下:
在“\uuuuu_uuuu uuuu()”函数中定义self.floorelSkills=[]
,并将适当的参数传递给controller.floorel1(ele1Entry)
,以便将输入字符串值传递给处理按钮按下的函数
上面的代码将用户输入打印到终端(两次,第一次来自传递的用户输入,第二次来自列表中的所有项目)
将self.floorelSkills=[]
行放入showFrame()
重置收集技能输入的列表(使输入重新启动成为可能)
上面的代码解决了问题中提到的两个问题,但这并不意味着没有其他问题需要解决 你试过我回答的密码了吗?它解决了你在问题中提到的问题,对吗?
import tkinter as tk
from tkinter import ttk
#make the lists to store the skill names
# floorEle1Skills = []
class startValue(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.wm_title(self, "Start Value Calculator")
tk.Tk.minsize(self, width = 350, height = 300)
container = tk.Frame(self)
container.pack(side = 'top', fill = 'both', expand = True)
container.grid_rowconfigure(0, weight = 1)
container.grid_columnconfigure(0, weight = 1)
self.frames = {}
for f in (startPage, floorPage): # , pommelPage, ringsPage, vaultPage, pbarsPage, hbarPage):
frame = f(container, self)
self.frames[f] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.showFrame(startPage)
#make the lists to store the skill names
self.floorEle1Skills = []
def showFrame(self, cont):
self.floorEle1Skills = []
frame = self.frames[cont]
frame.tkraise()
def floorEle1(self, skill):
print("#", skill.get())
self.floorEle1Skills.append(skill)
#clear the text entry
#ele1Entry.delete(0, tk.END)
#why doesnt this work???
#why is it printed as an object??
for item in self.floorEle1Skills:
print("##",item.get())
class startPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Select Event")
label.pack(pady = 10, padx = 10)
floorButton = ttk.Button(self, text = "Floor", command = lambda : controller.showFrame(floorPage))
floorButton.pack()
class floorPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Floor")
label.pack(pady = 10, padx = 10)
#make the entries and labels
ele1Label = tk.Label(self, text = "Element Group 1:")
ele1Label.pack()
skill1 = tk.StringVar()
ele1Entry = tk.Entry(self, textvariable = skill1)
ele1Entry.pack()
ele1Button = ttk.Button(self, text = "Add", command = lambda : controller.floorEle1(ele1Entry))
ele1Button.pack()
startButton = ttk.Button(self, text = "Back to Start", command = lambda : controller.showFrame(startPage))
startButton.pack(side = 'bottom')
root = tk.Tk()
my_gui = startValue()
root.mainloop()