Tkinter 文本框（随机/交替改变 Tkinter 文本框的前景色）

Question

#Text Frame

TextFrame = Frame(win, bg="#003030")

TextFrame.pack(fill=BOTH, expand=True)

#Create a Text Box

TextBox = Text(TextFrame)

TextBox.pack(side="bottom", fill=BOTH, expand=True)

#Color Picker

choose = ["#ff0000", "#0000ff"]

color = choice(choose)

#Button Function

def render():

    global color

    from tkinter import Text

    input = (TextBox.get("1.0",'end-1c')) #Takes input from the Text Box

    win2 = Toplevel()

    win2.attributes("-fullscreen", True)

    TextFull = Text(win2, font="Ubuntu 14",**fg=choice(choose)**, bg="black")

    TextFull.insert(0.0,input) #Displays Input from first window to second window

    TextFull.pack(fill=BOTH, expand=True)

如何从文本框中的选择列表中获取随机 fg 颜色。目前我一次只能得到一种 fg 颜色。

Answer 1

    #Color Pickercolorlist = ["#ff0000", "#0000ff"]#Button Functiondef render():    global color    import random    from tkinter import Text    input = (TextBox.get("1.0",'end-1c')) #Takes input from the Text Box    win2 = Toplevel()    win2.attributes("-fullscreen", True)    TextFull = Text(win2,        font="Ubuntu 14",        fg="white",        bg="black")    for i in range (len(colorlist)):        TextFull.tag_configure(str(i), foreground=colorlist[i])    # TextFull.insert(0.0,input) #Displays Input from first window to second window    TextFull.pack(fill=BOTH, expand=True)    for i in input:        tempchoice =random.randint(0, len(colorlist)-1)        TextFull.insert(END, i, str(tempchoice))    TextFull.insert(END, '\n')终于设法通过使用 tag_configure 获得了想要的结果。不是随机单词，而是字母，我可以接受。

Answer 2

首先，您必须创建具有初始前景色的文本小部件。然后你需要在一个定时的事情中改变前景的颜色。您可以使用after()该方法：def render():&nbsp; &nbsp; def flash():&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; # <-- flash()&nbsp; &nbsp; &nbsp; &nbsp; TextFull.config(fg=choice(["#ff0000", "#0000ff"]))&nbsp; # <-- update color&nbsp; &nbsp; &nbsp; &nbsp; win.after(1000, flash)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; # <-- call flash again after 1 second&nbsp; &nbsp; global color&nbsp; &nbsp; from tkinter import Text&nbsp; &nbsp; input = (TextBox.get("1.0",'end-1c')) #Takes input from the Text Box&nbsp; &nbsp; win2 = Toplevel()&nbsp; &nbsp; win2.attributes("-fullscreen", True)&nbsp; &nbsp; TextFull = Text(win2, font="Ubuntu 14", fg='#0000ff', bg="black")&nbsp; &nbsp; TextFull.insert(0.0,input) #Displays Input from first window to second window&nbsp; &nbsp; TextFull.pack(fill=BOTH, expand=True)&nbsp; &nbsp; flash()&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;# call flash