tkinter参数在两个函数之间传递

Question

from Tkinter import *
root=Tk()
x1=StringVar()
y=IntVar()

def hello(z):
    print z

def temp():
    root1=Tk()
    x1.set("hello world")
    Entry(root1,textvariable=x1).pack()
    Button(root1,text="try me",command=(lambda :hello (x1.get()))).pack()

    root1.mainloop()



Button(root,text="enter the new window",command=temp).pack()

root.mainloop()

iam new to tkinter.i am struck with argument passing between functions in tkinter

in the above code when try me button is clicked i want the text entered in the entry box to be passed to the function but instead every time hello world is printing.

please tell me way to get text from entry and that text must be passed on to the function thanks in advance

Answer 1

You are passing x1.get() to hello() that's why every time hello world is printed. Instead of that, fetch the current Entry text and pass it to hello(). To fetch the current Entry text, use the get method of Entry Widget

Modify your code as shown below:

e = Entry(root1,textvariable=x1)
e.pack();
Button(root1,text="try me",command=(lambda :hello (e.get()))).pack()