我正在尝试为tkinter编码。这是代码。这是可验证的。您可以输入任何数字来验证这一点。
import tkinter as tk
rectangle_values = []
rectangle_number = []
temp_recta = []
temp_rectn = []
rcta = []
rctn = []
area_var = 0
minw = 0
maxw = 0
minl = 0
maxl = 0
are_a = 0
comp = 0
h = 0
def open_window(rect, mnw,mxw,mnl,mxl):
window.title('Rectangles')
global minw
global maxw
global minl
global maxl
global are_a
global comp
global h
global rectangle_values
global rectangle_number
minw = mnw
maxw = mxw
minl = mnl
maxl = mxl
comp = rect
x, y, z, j = 400, 405, 405, 1
l9 = tk.Label(canvas, text="각 Component 입력 정보", font= "calibri 14 bold", bg="white")
canvas.create_window(30,345, window=l9, anchor=tk.NW)
l10 = tk.Label(canvas, text="CW", font= "calibri 14", bg="white")
canvas.create_window(200,370, window=l10, anchor=tk.NW)
l11 = tk.Label(canvas, text="CH", font= "calibri 14", bg="white")
canvas.create_window(335,370, window=l11, anchor=tk.NW)
l12 = tk.Label(canvas, text="공급사 모재 면적 정보", font= "calibri 14 bold", bg="white")
canvas.create_window(460,350, window=l12, anchor=tk.NW)
l12 = tk.Label(canvas, text="Area", font= "calibri 14", bg="white")
canvas.create_window(470,380, window=l12, anchor=tk.NW)
poscoimg3 = tk.PhotoImage(file="C:/Users/sel/Desktop/poscoimg3.png")
canvas.create_image(700,360, image=poscoimg3, anchor=tk.NW)
canvas.poscoimg3 = poscoimg3
area_var = tk.DoubleVar()
entry_area_number = tk.Entry(canvas, textvariable=area_var)
canvas.create_window(590,395, window=entry_area_number)
for i in range(0, rect * 2):
if (i % 2) == 0:
l1 = tk.Label(canvas, text="Component %d" %(j), font= "calibri 13", bg="white")
canvas.create_window(30, x, window=l1, anchor=tk.NW)
rectangle_values.append(tk.StringVar())
j +=1
x +=30
en = tk.Entry(canvas, textvariable=rectangle_values[i])
canvas.create_window(150, y, window=en, anchor=tk.NW)
y +=30
if (i % 2) != 0:
rectangle_values.append(tk.StringVar())
en = tk.Entry(canvas, textvariable=rectangle_values[i])
canvas.create_window(285, z, window=en, anchor=tk.NW)
z +=30
h=y
#for j in range(0, rect):
#rectangle_number.append(tk.StringVar())
#en = tk.Entry(canvas, textvariable=rectangle_number[j])
#canvas.create_window(400, f, window=en, anchor=tk.NW)
#f +=20
proceed_button = tk.Button(canvas, text="Run",font= "calibri 13", command=lambda: first_step(area_var.get()))
canvas.create_window(470, 420, window=proceed_button, anchor=tk.NW)
canvas.configure(scrollregion=canvas.bbox("all"))
def first_step(e):
global temp_recta
global temp_rectn
global rcta
global rctn
global comp
global are_a
are_a = e
for r in range(0, comp * 2):
temp_recta.append(rectangle_values[r].get())
for i in range(len(temp_recta)):
t = int(temp_recta[i])
rcta.append(t)
for r in range(0, comp):
temp_rectn.append(rectangle_number[r].get())
for i in range(len(temp_rectn)):
t = int(temp_rectn[i])
rctn.append(t)
cal_culate()
window = tk.Tk()
window.configure(background='white')
ws = window.winfo_screenwidth()
hs = window.winfo_screenheight()
w = 980 # width for the Tk root
h = 600 # height for the Tk root
x = (ws / 2) - (w / 2)
y = (hs / 2) - (h / 2)
window.geometry('%dx%d+%d+%d' % (w, h, x, y))
canvas = tk.Canvas(window, bg="white", width=980, height=580, highlightthickness=0)
canvas.pack()
canvas_scroll = tk.Scrollbar(canvas, command=canvas.yview)
canvas_scroll.place(relx=1, rely=0, relheight=1, anchor=tk.NE)
canvas.configure(yscrollcommand=canvas_scroll.set, scrollregion=())
l0 = tk.Label(canvas, text="강재 NESTING 최적화 프로그램", font= "calibri 32 bold",fg="royalblue4",bg="white" )
canvas.create_window(200,70, window=l0, anchor=tk.NW)
l00 = tk.Label(canvas, text="제조사 시트 입력 정보", font= "calibri 14 bold", bg="white" )
canvas.create_window(30,155, window=l00, anchor=tk.NW)
photo = tk.PhotoImage(file="C:/Users/sel/Desktop/posco.png")
canvas.create_image(800,10, image=photo, anchor=tk.NW)
line = tk.PhotoImage(file="C:/Users/sel/Desktop/line.png")
canvas.create_image(0,130, image=line, anchor=tk.NW)
poscoimg1 = tk.PhotoImage(file="C:/Users/sel/Desktop/poscoimg1.png")
canvas.create_image(500,180, image=poscoimg1, anchor=tk.NW)
poscoimg2 = tk.PhotoImage(file="C:/Users/sel/Desktop/poscoimg2.png")
canvas.create_image(0,340, image=poscoimg2, anchor=tk.NW)
l1 = tk.Label(canvas, text="MIN", font= "calibri 14", bg="white")
canvas.create_window(210,180, window=l1, anchor=tk.NW)
l2 = tk.Label(canvas, text="MAX", font= "calibri 14", bg="white")
canvas.create_window(340,180, window=l2, anchor=tk.NW)
l3 = tk.Label(canvas, text="Sheet 폭(SW)", font= "calibri 13", bg="white")
canvas.create_window(33,200, window=l3, anchor=tk.NW)
minw_var = tk.DoubleVar()
entry_minw_number = tk.Entry(canvas, textvariable=minw_var)
canvas.create_window(220,215, window=entry_minw_number)
maxw_var = tk.DoubleVar()
entry_maxw_number = tk.Entry(canvas, textvariable=maxw_var)
canvas.create_window(355,215, window=entry_maxw_number)
l4 = tk.Label(canvas, text="Sheet 높이(SH)", font= "calibri 13", bg="white")
canvas.create_window(33,230, window=l4, anchor=tk.NW)
minl_var = tk.DoubleVar()
entry_minl_number = tk.Entry(canvas, textvariable=minl_var)
canvas.create_window(220,240, window=entry_minl_number)
maxl_var = tk.DoubleVar()
entry_maxl_number = tk.Entry(canvas, textvariable=maxl_var)
canvas.create_window(355,240, window=entry_maxl_number)
l5 = tk.Label(canvas, text="소요 Component 개수", font= "calibri 13", bg="white")
canvas.create_window(33,260, window=l5, anchor=tk.NW)
rect_var = tk.IntVar()
entry_rect_number = tk.Entry(canvas, textvariable=rect_var)
canvas.create_window(290,270, window=entry_rect_number)
submit_button = tk.Button(canvas, text="Submit",font= "calibri 13", command=lambda: open_window(rect_var.get(),\
minw_var.get(), maxw_var.get(),minl_var.get(),maxl_var.get()))
canvas.create_window(200, 290, window=submit_button, anchor=tk.NW)
canvas.bind_all('<MouseWheel>', lambda event: canvas.yview_scroll(int(-1*(event.delta/120)), "units"))
def cal_culate():
print(minw,maxw,minl,maxl,comp,are_a)
window.title("Rectangle Configuration")
window.mainloop()
我只是尝试打印输入的数字，以检查代码是否运行良好。但是我遇到了这个错误。
错误
Tkinter回调中的异常
回溯（最近通话最近一次）：
> strong>呼叫
中的文件“ C：\ Users \ sel \ Anaconda3 \ lib \ tkinter__init __。py”，行1705返回self.func（* args）
文件“”，第92行，在 前进按钮= tk.Button（画布，文字=“运行”，字体=“ calibri 13”，>命令= lambda：first_step（area_var.get（）））
文件“”的第113行，在first_step中 temp_rectn.append（rectangle_number [r] .get（））
IndexError：列表索引超出范围”
我不知道我哪里出了错。
答案 0 :(得分：2)
int（）无法将空字符串转换为整数，您想要的是检查temp_recta [i]实际上是否为非空字符串，然后尝试对其进行解析。如果它是一个空字符串，则可以将其解析为0（这部分很大程度上取决于您的业务逻辑）
>>> s = ''
>>> i = int(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: ''
>>> i = int(s) if s else 0
在上面的示例中，如果s为'30'，我将为30，如果它为'（空白字符串），我将为0