python 输入框 focus_Python3 tkinter基础 Entry validate validatecommand 失去焦点时，检查输入内容...

from tkinter import *


def main():

    def _test():

        if inputStr.get() != '木兰':

            judge_res.set('输入的不是木兰')

            return False

        else:

            judge_res.set('输入的是木兰')

            return True

    root = Tk()

    content = StringVar()

    inputStr = Entry(root, textvariable=content,  # 内容可变

                     validate="focusout",  # 失去焦点调用test函数

                     validatecommand=_test

                     )
    inputStr.grid(row=0, column=0, pady=10, padx=10)

    # 靠西

    Label(root, text="judge:").grid(row=1, column=0, sticky=W, pady=10, padx=10)

    judge_res = StringVar()

    Label(root, textvariable=judge_res).grid(row=1, column=1, pady=10, padx=10)

    mainloop()


if __name__ == '__main__':

    main()