我正在制作薪资计算器,我需要Generic parameter Subject cannot be inferred
标签才能在GUI中使用正确的数据进行打印。
我尝试更改行,但仍然行不通。只是说“总工资:0.00美元”
results
在第50行中,import tkinter as tk
#WINDOW PROPERTIES
GUI = tk.Tk()
GUI.title("Payroll Calculator")
GUI.minsize('305','110')
GUI.maxsize('305','110')
hoursWorked = tk.StringVar()
payRate = tk.StringVar()
#TAXES
states_dict = {'Alabama' : 0.035, 'Arizona' : 0.03565, 'Alaska' : 1, 'Arkansas' : 0.039, 'California' : 0.0715,
'Colorado' : 1, 'Connecticut' : 0.04995, 'Delaware' : 0.044, 'Florida' : 1, 'Georgia' : 0.035, 'Hawaii' : 0.04825,
'Idaho' : 4.5, 'Illinois' : 1, 'Indiana' : 1, 'Iowa' : 0.0467, 'Kansas' : 0.0405, 'Kentucky' : 0.04,
'Louisiana' : 0.04, 'Maine' : 0.06475, 'Maryland' : 0.03875, 'Massachusetts' : 1, 'Michigan' : 1, 'Minnesota' : 0.076,
'Mississippi' : 0.04, 'Missouri' : 0.0375, 'Montana' : 0.0395, 'Nebraska' : 0.0465, 'Nevada' : 1, 'New Hampshire' : 1,
'New Jersey' : 0.05185, 'New Mexico' : 0.033, 'New York' : 0.0641, 'North Carolina' : 1, 'North Dakota' : 0.02, 'Ohio' : 0.0275, 'Oklahoma' : 0.0275,
'Oregon' : 0.0745, 'Pennsylvania' : 1, 'Rhode Island' : 0.0487, 'South Carolina' : 0.035, 'South Dakota' : 1, 'Tennessee' : 1, 'Texas' : 1, 'Utah' : 1,
'Vermont' : 0.0625, 'Washington' : 1, 'West Virginia' : 0.0475, 'Wisconsin' : 0.05825, 'Wyoming' : 1, 'District of Columbia' : 0.06475}
# NEW CALCULATE FUNCTION /////////////////////////////
def calculate():
state = opt.get()
tax = states_dict[state]
salary = (float(hoursWorked.get()) * float(payRate.get())) - (float(payRate.get()) * states_dict[state])
result.set(salary)
# ////////////////////////////////////////////////////
result = tk.DoubleVar()
#ENTRY
tk.Label(GUI, text='Pay Rate:', font="110").grid(row=0)
tk.Label(GUI, text='Hours Worked:', font="110").grid(row=1)
e1 = tk.Entry(GUI, textvariable = payRate)
e2 = tk.Entry(GUI, textvariable = hoursWorked)
e1.grid(row = 0, column = 1, sticky = tk.W)
e2.grid(row = 1, column = 1, sticky = tk.W)
#OPTION MENU
opt = tk.StringVar()
opt.set("Choose a state")
option = tk.OptionMenu(GUI, opt, *states_dict).grid(row=2, column=0)
frame = tk.Frame(GUI)
frame.grid()
results = tk.Label(GUI, text = "Total Pay: $" + "%.2f" % result.get()).grid(row=3, column=1)
button = tk.Button(frame, text='Calculate', fg='red', command=calculate)
button.grid(row=1, column=0)
#SET DEFAULTS
hoursWorked.set(0)
payRate.set(0)
#EVENT LOOP
GUI.mainloop()
这是我需要在GUI角落打印的内容,并且每次都需要更新。
答案 0 :(得分:0)
您没有使用标签的textvariable
参数。更改此:
results = tk.Label(GUI, text = "Total Pay: $" + "%.2f" % result.get()).grid(row=3,
column=1)
对此:
results = tk.Label(GUI, textvariable=result).grid(row=3, column=1)
尽管如此,仍然存在其他一些潜在的错误,例如,如果用户点击计算而没有首先选择状态,则得到KeyError
。
编辑:如果您想保留格式,我认为最简单的方法就是预先过滤set方法:
class MyTextVar(tk.StringVar):
def set(self, val):
text = f'Total Pay: ${val:.2f}'
super().set(text)
result = MyTextVar()
result.set(0)
...
results = tk.Label(GUI, textvariable=result).grid(row=3, column=1)