如何将 tkinter 函数推入新窗口？

Question

我正在尝试在 python 中使用 GUI tkinter 制作人员配备计算器新窗口中的空标签我也没有发现任何要修复的错误，请您帮帮我吗？这是我的代码和屏幕截图：

from tkinter import *
root = Tk()
root.title("Workload Staffing Calculator")
#Header 
headerlab = Label(root, text="Please fill the below form and click calculate to get the required staff.").grid(row=0,columnspan=2,pady=20,padx=20)

#Inputs names
vollabel = Label(root, text="Volumes").grid(padx=0,pady=10)
ahtlabel = Label(root, text="AHT (sec.)").grid(padx=0, pady=10)
Occlabel = Label(root, text="Occupancy (%)").grid(padx=0, pady=10)
Shrinklabel = Label(root, text="Shrinkage (%)").grid(padx=0, pady=10)
weekendlabel = Label(root, text="Days Off").grid(padx=0, pady=10)
Shiftlabel = Label(root, text="Shift Duration (h)").grid(padx=0, pady=10)

#Entry inptus
volentry = Entry(root, width=10, borderwidth=3)
ahtentry = Entry(root, width=10, borderwidth=3)
occentry = Entry(root, width=10, borderwidth=3)
shrinkentry = Entry(root, width=10, borderwidth=3)
weekendentry = Entry(root, width=10, borderwidth=3)
shiftentry = Entry(root, width=10, borderwidth=3)
#shoving inputs on screen
volentry.grid(row=1, column=1, padx=20)
ahtentry.grid(row=2, column=1, padx=20)
occentry.grid(row=3, column=1, padx=20)
shrinkentry.grid(row=4, column=1, padx=20)
weekendentry.grid(row=5, column=1, padx=20)
shiftentry.grid(row=6, column=1, padx=20)


#Calculate Fuction

def calstaff() : 

    v = volentry.get()
    a = ahtentry.get()
    o = occentry.get()
    s = shrinkentry.get()
    w = weekendentry.get()
    sh = shiftentry.get()
    required = (int(v) * int(a)) / (int(sh) * 3600)
    total = required * (7 / (7 - int(w))) * (1 + float(s))
    newwindow = Tk()
    newwindow.title("The required is: ")
    result = Label(newwindow, textvariable=total).pack()
    return result
#calculate button
calculate = Button(root, text="Calculate", command=calstaff)
calculate.grid(padx=20,pady=10)

root.mainloop()  

Answer 1

不建议多次使用Tk()，因为它会中断主循环的流程。要创建另一个窗口，您应该尝试使用Toplevel()

其次，用text代替textvariable

参考下面的代码：

.
..
def calstaff() : 

    v = volentry.get()
    a = ahtentry.get()
    o = occentry.get()
    s = shrinkentry.get()
    w = weekendentry.get()
    sh = shiftentry.get()
    required = (int(v) * int(a)) / (int(sh) * 3600)
    total = required * (7 / (7 - int(w))) * (1 + float(s))
    newwindow = Toplevel()                     #TOPLEVEL() USED
    newwindow.title("The required is: ")
    result = Label(newwindow, text=total)      #text instead of textvariable
    result.pack()
    newwindow.mainloop()                       #mainloop for newwindow
..