特金特隐藏提示

Question

当我选择用户名和密码部分时，如何自动删除此提示？（单击后不显示）

from tkinter import *
root =Tk()
def save_fonc():
    kul=entry1.get()
    pas=entry2.get()
    print("Username:",kul,"Password:",pas)

#------------------
entry1=Entry(root)
entry1.insert(0,"Username")
entry1.pack()
#------------------
entry2=Entry(root)
entry2.insert(0,"Password")
#entry2.config(show="*")#and also I don't want to show password section.
entry2.pack()
#------------------
buton_kaydet=Button(root,text="Enter",command=save_fonc)
buton_kaydet.pack()

root.geometry("300x200")
root.mainloop()

Answer 1

单击标签时，只需删除文本即可

例如：

from tkinter import *
root = Tk()

def clear_text(event):
    event.widget.delete(0, "end")

entry1=Entry(root)
entry1.insert(0,"Username")
entry1.pack()
entry1.bind("<FocusIn>", clear_text)

它所做的是将它绑定到函数clear_textclear_text清除标签中的文本

完整代码：

from tkinter import *
root =Tk()
def save_fonc():
    kul=entry1.get()
    pas=entry2.get()
    print("Username:",kul,"Password:",pas)

def clear_text(event):
    event.widget.delete(0, "end")

#         
entry1=Entry(root)
entry1.insert(0,"Username")
entry1.pack()
entry1.bind("<FocusIn>", clear_text)
#         
entry2=Entry(root)
entry2.insert(0,"Password")
entry2.config(show="*")#and also I don't want to show password section.
entry2.pack()
entry2.bind("<FocusIn>", clear_text)
#         
buton_kaydet=Button(root,text="Enter",command=save_fonc)
buton_kaydet.pack()

root.geometry("300x200")
root.mainloop()

Answer 2

制作一个清除输入框中文本的函数，然后将其绑定到函数中

&13； 第13部分,；

def removeValue(event):
    event.widget.delete(0, 'end')
    

；

和#13；

Answer 3

现在，您可以改进您的代码：

from tkinter import *
root = Tk()


def save_fonc():
    kul = entry1.get()
    pas = entry2.get()
    print("Username:", kul, "Password:", pas)


def pass_func(event):
    entry2.delete(0, 'end')
    entry2.config(show='*')

#          
entry1 = Entry(root)
entry1.insert(0, "Username")
entry1.pack()
entry1.bind('<FocusIn>', lambda e: entry1.delete(0, 'end'))
#          
entry2 = Entry(root)
entry2.insert(0, "Password")
entry2.pack()
entry2.bind('<FocusIn>', pass_func)
#          
buton_kaydet = Button(root, text="Enter", command=save_fonc)
buton_kaydet.pack()

root.geometry("300x200")
root.mainloop()

因此，基本上.bind将每个条目绑定到一个事件，在本例中：'<FocusIn>'，当焦点切换到该小部件时触发该事件。同样，在第二种情况下，条目仅在事件触发后配置，以便“密码”正常可见