每次单击按钮时，将值存储在不同的变量 python tkinter答案

【问题标题】：Everytime button is clicked store value in a different variable python tkinter每次单击按钮时，将值存储在不同的变量 python tkinter
【发布时间】：2022-09-30 23:15:46
【问题描述】：

您好我正在尝试编写一个聊天机器人，它接受以下输入：姓名和姓氏这个想法是，当用户单击“发送”按钮时，输入存储在“名称”变量中。文本框被清除，当用户再次单击按钮时，新输入应进入另一个变量“姓氏”。我怎样才能做到这一点？我想在聊天机器人的 GUI 中打印“Hello name + lastname”

这是我到目前为止所拥有的：

from tkinter import *  #GUI library a
import sys

root = Tk() #create a tkinter object which represents the parent window

root.title(\"Chat Bot\")
root.geometry(\"400x500\")
root.resizable(width=FALSE, height=FALSE)

chatWindow = Text(root, bd=1, bg=\"black\",  width=\"50\", height=\"8\", font=(\"Arial\", 12), foreground=\"#00ffff\") #create a window for the conversation and place it on the parent window
chatWindow.place(x=6,y=6, height=385, width=370)

messageWindow = Text(root, bd=0, bg=\"black\",width=\"30\", height=\"4\", font=(\"Arial\", 23), foreground=\"#00ffff\") #create the text area where the message will be entered and place it on the parent window
messageWindow.place(x=128, y=400, height=88, width=260)

def get():
    name = messageWindow.get(\'1.0\', END) #\"1.0\" means that the input should be read from line one, character zero (ie: the very first character). END is an imported constant which is set to the string \"end\". The END part means to read until the end of the text box is reached.
    messageWindow.delete(\'1.0\', END)

Button= Button(root, text=\"Send\", command = get, width=\"12\", height=5,
                    bd=0, bg=\"#0080ff\", activebackground=\"#00bfff\",foreground=\'#ffffff\',font=(\"Arial\", 12))
Button.place(x=6, y=400, height=88) #create button to send the message and place it in the parent window


#Whenever I am calling print) I am actually calling sys.stdout.write() so with this function redirector which redirect the print() to the GUI
def redirector(inputStr):
    chatWindow.insert(INSERT, inputStr)

sys.stdout.write = redirector #whenever sys.stdout.write is called, redirector is called.

print(\"Hello, I am your awesome assistant today. \\n\")
print(\"Please enter your name and last name. \\n\")
root.mainloop()

标签： python tkinter data-science

【解决方案1】：

我查看了您的问题并组织了您的代码。您可以通过创建另一个函数并在get() 中调用它来解决问题。您可以使用语句len() 检查变量是否为空。那么你的代码将是这样的：

import sys

name = ""
last_name = ""


def react(text):
    global name
    global last_name
    if len(name) == 0:
        name = text
    elif len(last_name) == 0:
        last_name = text
        print(f"hello {name} {last_name}")


def get():
    name = messageWindow.get('1.0', END)  # "1.0" means that the input should be read from line one, character zero (ie: the very first character). END is an imported constant which is set to the string "end". The END part means to read until the end of the text box is reached.
    messageWindow.delete('1.0', END)
    name = name[0:-1]
    react(name)


# Whenever I am calling print() I am actually calling sys.stdout.write() so with this function redirector which redirect the print() to the GUI
def redirector(inputstr):
    chatWindow.insert(INSERT, inputstr)


sys.stdout.write = redirector  # whenever sys.stdout.write is called, redirector is called.


root = Tk()  # create a tkinter object which represents the parent window


root.title("Chat Bot")
root.geometry("400x500")
root.resizable(width=FALSE, height=FALSE)


chatWindow = Text(root, bd=1, bg="black",  width="50", height="8", font=("Arial", 12), foreground="#00ffff")  # create a window for the conversation and place it on the parent window
chatWindow.place(x=6, y=6, height=385, width=370)


messageWindow = Text(root, bd=0, bg="black", width="30", height="4", font=("Arial", 23), foreground="#00ffff")  # create the text area where the message will be entered and place it on the parent window
messageWindow.place(x=128, y=400, height=88, width=260)


Button = Button(root, text="Send", command=get, width="12", height=5, bd=0, bg="#0080ff", activebackground="#00bfff", foreground='#ffffff', font=("Arial", 12))
Button.place(x=6, y=400, height=88)  # create button to send the message and place it in the parent window


print("Hello, I am your awesome assistant today. \n")
print("Please enter your name and last name. \n")
root.mainloop()

【讨论】：

非常感谢！你能解释一下你是怎么做到的吗？我想这是在 react() 函数中完成的？
name = name [0:-1] 是什么意思？
是的，它在反应功能中。在那里，您可以构建聊天机器人的所有反应。