Python 如何为 Tkinter Entry 小部件设置默认文本

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时间:2020-08-18 19:37:46  来源:igfitidea点击:

How to set default text for a Tkinter Entry widget

pythonpython-2.7user-interfacetkinter

提问by Big Al

How do I set the default text for a Tkinter Entry widget in the constructor? I checked the documentation, but I do not see a something like a "string="option to set in the constructor?

如何在构造函数中为 Tkinter Entry 小部件设置默认文本?我检查了文档,但我没有看到类似"string="在构造函数中设置的选项?

There is a similar answer out there for using tables and lists, but this is for a simple Entry widget.

对于使用表格和列表,有一个类似的答案,但这是一个简单的 Entry 小部件。

采纳答案by falsetru

Use Entry.insert. For example:

使用Entry.insert. 例如:

try:
    from tkinter import *  # Python 3.x
except Import Error:
    from Tkinter import *  # Python 2.x

root = Tk()
e = Entry(root)
e.insert(END, 'default text')
e.pack()
root.mainloop()

Or use textvariableoption:

或使用textvariable选项:

try:
    from tkinter import *  # Python 3.x
except Import Error:
    from Tkinter import *  # Python 2.x

root = Tk()
v = StringVar(root, value='default text')
e = Entry(root, textvariable=v)
e.pack()
root.mainloop()