python - 在文本小部件中搜索单词/字母 (tkinter)

Question

如何添加在文本小部件中搜索文本的搜索功能？* 根据用户输入进行搜索

def openFile():
    global text
    artiststxt = tkinter.Tk()
    artiststxt.title('Artists')
    artiststxt.geometry('300x360')
    artiststxt.minsize(300,360)
    artiststxt.maxsize(500,360)
    file = open('Artists.txt','r', encoding='utf-8')
    lines = file.read()
    scrollbar = Scrollbar(artiststxt, jump = 1)
    text = Text(artiststxt, yscrollcommand = scrollbar.set)
    scrollbar.configure(command=text.yview)
    text.insert(INSERT, lines)
    text.config(font=('Fixedsys', 15), fg = 'darkblue', bg = 'lightgray')
    menu = tkinter.Menu(artiststxt,tearoff=0)
    menu.add_command(label='Save', command = saveFile)
    artiststxt.config(menu=menu)
    scrollbar.pack(side=RIGHT, fill=BOTH)
    text.pack()

编辑:好的，我找到了如何用这个搜索文本:

def get(event):
global searchent
text.tag_remove('found', '1.0', END)
s = searchent.get()
if s:
    idx = '1.0'
    while 1:
        idx = text.search(s, idx, nocase=1, stopindex=END)
        if not idx: break
        lastidx = '%s+%dc' % (idx, len(s))
        text.tag_add('found', idx, lastidx)
        idx = lastidx
    text.tag_config('found', foreground='red')
searchent.focus_set()

现在，假设搜索的文本位于更下方。如何使滚动条向下移动到搜索到的文本？

Answer 1

好吧，我明白了。花了一些时间，但非常值得。

首先我们在窗口中创建一个输入框，并将其与回车键绑定(bind)并放置一个 .get 事件

searchent.bind("<Return>", get)

当按下回车键时，我们进入 def get(event):

def get(event):
global searchent 
text.tag_remove('found', '1.0', END)
s = searchent.get() # Grabs the text from the entry box
if s:
    idx = '1.0'
    while 1:
        idx = text.search(s, idx, nocase=1, stopindex=END)
        if not idx: break
        lastidx = '%s+%dc' % (idx, len(s))
        text.tag_add('found', idx, lastidx)
        idx = lastidx
        text.see(idx)  # Once found, the scrollbar automatically scrolls to the text
    text.tag_config('found', foreground='red')
searchent.focus_set()