我正在 Tkinter 中開發(fā)一個(gè)簡(jiǎn)單的文本編輯器。我想在用戶輸入文本時(shí)驗(yàn)證文本小部件，以便可以應(yīng)用樣式。我無(wú)法綁定，<KeyPress>因?yàn)樗诎聪掳存I后更新，并且我無(wú)法綁定<KeyRelease>，因?yàn)楫?dāng)用戶按住按鍵時(shí)它不會(huì)觸發(fā)事件，而這是它需要的。還有其他辦法解決這個(gè)問(wèn)題嗎？這是最小的代碼：import tkinter as tkclass textEditor(tk.Frame): def __init__(self, *args, **kwargs): tk.Frame.__init__(self, *args, **kwargs) self.textFrm = tk.Frame(self) self.textFrm.pack(fill = "x") self.text = tk.Text(self.textFrm, relief = "flat", font = ("Arial","11")) self.text.pack(fill = "both", expand = True) self.text.bind("<KeyRelease>",lambda event: self.keyPress()) self.text.focus() def keyPress(self): #This is not called when a key is held down print(self.text.get("end-2c","end-1c"))root = tk.Tk()root.title("Text editor test")t = textEditor(root)t.pack()root.mainloop()
1 回答
慕慕森
TA貢獻(xiàn)1856條經(jīng)驗(yàn) 獲得超17個(gè)贊
我可以通過(guò)簡(jiǎn)單地將<KeyRelease>和綁定<KeyPress>到tk.Text小部件來(lái)實(shí)現(xiàn)它。（雖然我按照bindings指定的相同順序進(jìn)行了操作，但我認(rèn)為這不會(huì)產(chǎn)生影響）。
現(xiàn)在我不能說(shuō)這是一個(gè)好的解決方案還是一個(gè)好的實(shí)踐，但它確實(shí)有效。
import tkinter as tk
class textEditor(tk.Frame):
def __init__(self, *args, **kwargs):
tk.Frame.__init__(self, *args, **kwargs)
self.textFrm = tk.Frame(self)
self.textFrm.pack(fill = "x")
self.text = tk.Text(self.textFrm, relief = "flat", font = ("Arial","11"))
self.text.pack(fill = "both", expand = True)
self.text.bind("<KeyRelease>",lambda event: self.keyPress())
self.text.bind("<KeyPress>",lambda event: self.keyPress())
self.text.focus()
def keyPress(self):
print(self.text.get("end-2c","end-1c"))
root = tk.Tk()
root.title("Text editor test")
t = textEditor(root)
t.pack()
root.mainloop()
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