改bug時踩的坑

用元組接收返回的多個陣列

class p(object):
    def __init__(self):
        (self.x,self.y)=self.xdxx()
        print(self.x)

    def xdxx(self):
        a=[1,4,5,8,5]
        b=[4,5,8,9,9]
        return a,b

t=p()


(x,y)=xdxx()
print(x)
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n=int(input())
print(n)
#這種做法完全OK
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num = 6
l1=[1,2,3,4,5,6]
l2=[7,8,9,5,4,3]

l=[]#不要忘記寫
for i in range(num):
    l.append(str(l1[i])+'  '+str(l2[i]))
print(l)
#可以執行
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獲取entry的內容時踩過的坑

from tkinter import *
def submit():
   print(u.get())
   p.set(u.get())
root = Tk()
root.title("測試")
frame = Frame(root)
frame.pack(padx=8, pady=8, ipadx=4)
lab1 = Label(frame, text="獲取:")
lab1.grid(row=0, column=0, padx=5, pady=5, sticky=W)

#繫結物件到Entry

u = StringVar()
ent1 = Entry(frame, textvariable=u)
ent1.grid(row=0, column=1, sticky='ew', columnspan=2)
print(u.get())
lab2 = Label(frame, text="顯示:")
lab2.grid(row=1, column=0, padx=5, pady=5, sticky=W)
p = StringVar()
ent2 = Entry(frame, textvariable=p)
ent2.grid(row=1, column=1, sticky='ew', columnspan=2)
button = Button(frame, text="登入", command=submit, default='active')
button.grid(row=2, column=1)
lab3 = Label(frame, text="")
lab3.grid(row=2, column=0, sticky=W)
button2 = Button(frame, text="退出", command=quit)
button2.grid(row=2, column=2, padx=5, pady=5)

#以下程式碼居中顯示視窗

root.update_idletasks()
x = (root.winfo_screenwidth() - root.winfo_reqwidth()) / 2
y = (root.winfo_screenheight() - root.winfo_reqheight()) / 2
root.geometry("+%d+%d" % (x, y))
root.mainloop()

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改bug時踩的坑

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