Mundo em Python

Taxa de Juro de Cartão de Crédito (usando Tkinter)

Publicado 10-10-2023
Caio Mário 
from tkinter import *
root = Tk()
root.geometry("500x400")
root.resizable(0, 0)
root.config(bg="#085e63")
root.title("Taxa de Juro de Cartão de Crédito")
titulo = Label(text="Taxa de Juro de Cartão de Crédito",
               font=("Arial", "22", "bold"),bg="#085e63",fg="#21e2ed")
titulo.place(relx=0.02, rely=0.05)
texto_sub1  = Label(text="Taxa Juro Mensal (em %) :",
                    font=("Arial", "16", "bold"),bg="#085e63",fg="#21e2ed")
texto_sub1.place(relx=0.05, rely=0.25)
texto_sub2 = Label(text="Saldo Pendente :",
                    font=("Arial", "16", "bold"),bg="#085e63",fg="#21e2ed")
texto_sub2.place(relx=0.23, rely=0.45)

taxa_juro_mensal = DoubleVar()
taxa_juro_mensal_entrada = Entry(textvariable=taxa_juro_mensal,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
taxa_juro_mensal_entrada.place(relx=0.6, rely=0.25, relwidth=0.35)


Saldo_Pendente = DoubleVar()
Saldo_Pendente_entrada = Entry(textvariable=Saldo_Pendente,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Saldo_Pendente_entrada.place(relx=0.6, rely=0.45, relwidth=0.35)
def limpar():
    Saldo_Pendente_entrada.delete(0, END)
    taxa_juro_mensal_entrada.delete(0, END)
    resultado.set("")
def app():
    t_mensal=taxa_juro_mensal.get()
    t_mensalpp = t_mensal/100
    saldo = Saldo_Pendente.get()
    juros_mensais = saldo * t_mensalpp
    mensagem = f"Os juros mensais são: € {juros_mensais}"
    resultado.set(mensagem)
but1 = Button(text="Calculadora", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.05, rely=0.6, relwidth=0.25, relheight=0.1)
but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.35, rely=0.6, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.65, rely=0.6, relwidth=0.25, relheight=0.1)
resultado = StringVar()
resultado_texto = Label(textvariable=resultado,
                           font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.75, relwidth=0.9,relheight=0.2)
root.mainloop()
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