如何计算字母数并在 tkinter 文本小部件中排文本? [英] How to count the number of letters and row a text in tkinter text widget?

问题描述

我想计算字母的数量并在 tkinter 文本小部件中排列文本.这是我的示例代码:

I want to count the number of letters and row a text in tkinter text widget. This is my sample code:

from tkinter import *

def letter_refresh():
    pass   

def row_refresh():
    pass

app=Tk()

label=Label(text='writing')
label.grid(row=1, column=0)

text = Text( )
text.insert(1.0,"abcd\nefgh\n\nijkl\nmnop")
text.grid(row=1,column=1,padx=5, pady=20)


letter=Button(text='letter_count', command = letter_refresh)
letter.grid(row=2, column=0,padx=1, pady=1)

letter_display=Entry()
letter_display.grid(row=2, column=1,  padx=5, pady=5,sticky=W)



row=Button(text='row_count', command = row_refresh)
row.grid(row=3, column=0,padx=1, pady=1)

row_display=Entry()
row_display.grid(row=3, column=1,  padx=5, pady=5,sticky=W)

app.mainloop()

我想letter_count结果是16，如果letter_count botton push.

I want to letter_count result is 16, if letter_count botton push.

我想row_count结果是4，如果row_count botton push.

I want to row_count result is 4, if row_count botton push.

推荐答案

条目的文本只不过是一个字符串.

An entry's text is nothing more than a string.

要计算可以在 \n 上拆分的行数，并检查返回列表的 len.

To count the rows you can split on \n and check the len of the returned list.

要计算字母，只需检查字符串的 len.您可能希望从该值中减去 '\n' 的数量(len(string) - string.count('\n')).

To count the letters simply check the len of the string. You will probably want to subtract the number of '\n' from that value (len(string) - string.count('\n')).

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