AttributeError：'_tkinter.tkapp'对象没有属性'root'

Question

class Trgbhtml ( TApplication ):
def __init__(self):
    TApplication.__init__(self, "RGB")
    self.size = (300, 120)
    self.position = (200, 200)
    f = ("GOST type A", 14)
    self.lblR = TLabel(self, text="R = ", font=f)
    self.lblR.position= (5, 5)
    self.lblG = TLabel(self, text="G = ", font=f)
    self.lblG.position = (5, 30)
    self.lblB = TLabel(self, text="B = ", font=f)
    self.lblB.position = (5, 55)
    fc = ("GOST type A", 16, "bold")
    self.rgbLabel = TLabel(self, text="#000000", font=fc, fg="navy")
    self.rgbLabel.position = (100, 5)
    self.rgbRect = TLabel(self, text="", width=150, height=60)
    self.rgbRect.position = (105, 35)
    self.rEdit = TEdit(self, font=f, width=50)
    self.rEdit.position = (45, 5)
    self.rEdit.text = "123"
    self.gEdit = TEdit(self, font=f, width=50)
    self.gEdit.position = (45, 30)
    self.gEdit.text = "56"
    self.bEdit = TEdit(self, font=f, width=50)
    self.bEdit.text = "80"
    self.bEdit.position = (45, 55)
    self.rEdit.onChange = self.onChange
    self.gEdit.onChange = self.onChange
    self.bEdit.onChange = self.onChange
def onChange(self, sender):
    r=int(self.rEdit.text)
    g=int(self.gEdit.text)
    b=int(self.bEdit.text)
    s="#{:02x}{:02x}{:02x}".format(r, g, b)
    self.rgbRect.background=s
    self.rgbLabel.text=s
app=Trgbhtml()
app.Run()

尝试启动时指示失败 该如何解决？

错误：AttributeError：'_tkinter.tkapp'对象没有属性'root'； app = Trgbhtml（）; self.lblR = TLabel（self，text =“ R =”，font = f）

Answer 1

错误告诉您您使用with t as( select row_number() over (partition by m order by d) as rn ,(row_number() over (partition by m order by d)-1) / 5 as gn ,* from @t where m = 1 ) select * ,case when p > r then r + (sum(case when p < r then r else 0 end) over (partition by gn) / sum(case when p > r then 1 else 0 end) over (partition by gn)) else case when p = r then r else 0 end end as r_adj from t; 作为with t as( select row_number() over (partition by m order by d) as rn ,(row_number() over (partition by m order by d)-1) / 10 as gn ,(row_number() over (partition by m order by d)+4) / 10 as gn2 ,* from @t where m = 1 ) ,r1 as( select * ,case when p > r then r + (sum(case when p < r then r - p else 0 end) over (partition by gn) / sum(case when p > r then 1. else 0. end) over (partition by gn)) else case when p = r then r else 0 end end as r_adj from t ) select d ,m ,p ,r ,case when p > r_adj then r_adj + (sum(case when p < r_adj then r_adj - p else 0 end) over (partition by gn2) / sum(case when p > r_adj then 1. else 0. end) over (partition by gn2)) else case when p = r_adj then r_adj else r_adj - (r_adj - p) end end as r_new from r1 order by rn ; 的父级，但是self不是小部件。您只能将小部件用作其他小部件的父代。