from tkinter import *
from tkinter import ttk
from tkinter.messagebox import showerror, showinfo
root = Tk()
root.geometry("250x200")
def clear():
entry_username.delete(0, END)
entry_password.delete(0, END)
def open_info():
showinfo(title="Info", message="Connected")
def open_error():
showerror(title="Error", message="Incorrect input")
def connect_to_db():
accepted_user = 'admin'
accepted_password = 'admin'
try:
print('Connect to DB')
username = entry_username.get()
password = entry_password.get()
if accepted_user == username and password == accepted_password:
open_info()
else:
open_error()
except Exception:
open_error()
finally:
clear()
label_username = ttk.Label(text = "USERNAME")
label_username.pack(anchor=NW, padx=6, pady=6)
entry_username = ttk.Entry()
entry_username.pack(anchor=NW, padx=6, pady=6)
label_password = ttk.Label(text = "PASSWORD")
label_password.pack(anchor=NW, padx=6, pady=6)
entry_password = ttk.Entry()
entry_password.pack(anchor=NW, padx=6, pady=6)
display_button = ttk.Button(text="Connect", command=connect_to_db)
display_button.pack(side=LEFT, anchor=N, padx=6, pady=6)
clear_button = ttk.Button(text="Clear", command=clear)
clear_button.pack(side=LEFT, anchor=N, padx=6, pady=6)
root.mainloop()
как можно вставить сюда переменную?
wchar_t * 
<select name="type" id="select_type" onchange="foo(this)">
<option value="none" hidden="">Выберите донат</option>
<option value="100">Донат за 100 рублей</option>
<option value="50">Донат за 50 рублей</option>
<option value="20">Донат за 20 рублей</option>
</select>
<button type="submit">Купить за <span id="price"></span> руб.</button>function foo(e) {
document.getElementById('price').innerHTML = e.value;
}
<html>
<head>
<script>
function main(){
a = b;
}
window.addEventListener('load', function(){
try {
main()
} catch (e){
proceedException(e)
}
})
</script>
<script src="file.js">
</script>
</head>
<body>
<div id="error">
</div>
</body>
</html>function parseStackTrace(stacktrace){
let [_, functionName, fileName, row, __, column] = stacktrace.match(/at\s([^\s]+)\s\((.+?):(\d+)(:(\d+))?\)/)
return [functionName, fileName, row, column]
}
function proceedException(exception){
let [fn, file, row, column] = parseStackTrace(exception.stack),
node = document.createElement('p');
node.innerText = `Ошибка в файле: ${file}, функция <${fn}> на строке ${row}${column ? '(' + column + ' символ)' : ''} ${exception}`;
document.querySelector('#error').appendChild(node);
}
function helper(){
let c = 1, a = b;
}
function onload(){
helper();
}
window.addEventListener('load', function(){
try {
onload()
} catch (e){
proceedException(e)
}
})