habe letzte Woche dieses calculator Mini Programm geschrieben.. läuft soweit alles gut calculator geht gut nur die Syntax controlle muckt herum wenn ich
Code: Alles auswählen
S=" hello " + Str(c)
Eingebe. Endergebnis der Kalkulation stimmt , aber etwas fehlt nur was?
Hier mein Code example
Code: Alles auswählen
# a=10 : b=20 : c=30 : s="Hello" # #GO and valid syntax
# a=10 : b=20 : c=30 : s="Hello" : s=c+b ' #GO but invalid syntax
# a=10 : b=20 : c=30 : s="Hello " + str(c) #GO but syntax not valid
import tkinter as tk
from tkinter import filedialog
variables = {} # Initialize variables dictionary
def calculate():
line = entry.get()
statements = line.split(":")
for statement in statements:
parts = statement.split("=")
var_name = parts[0].strip()
var_value = eval(parts[1].strip(), variables.copy())
variables[var_name] = var_value
output_text.delete(1.0, tk.END) # Clear previous output
output_text.insert(tk.END, variables.get('s', 'Invalid input'))
def syntax_check():
line = entry.get()
statements = line.split(":")
valid_syntax = True
for statement in statements:
parts = statement.split("=")
var_name = parts[0].strip()
# Check if it's a string assignment
if len(parts) == 2 and parts[1].strip().startswith('"') and parts[1].strip().endswith('"'):
continue
# Check if it's a string assignment with concatenation of a variable value
if len(parts) == 2 and '+' in parts[1].strip():
operands = parts[1].strip().split('+')
for operand in operands:
operand = operand.strip()
if operand.startswith('"') and operand.endswith('"'):
continue
elif operand in variables:
if not isinstance(variables[operand], str):
variables[operand] = str(variables[operand]) # Convert to string
continue
else:
valid_syntax = False
break
if not valid_syntax:
break
# Check if it's a numerical assignment with multiplication of two variables (a*b)
if len(parts) == 2 and '*' in parts[1].strip():
operands = parts[1].strip().split('*')
for operand in operands:
operand = operand.strip()
if not operand.isdigit() and not operand.replace('.', '', 1).isdigit():
if operand not in variables:
valid_syntax = False
break
if not valid_syntax:
break
if valid_syntax:
output_text.delete(1.0, tk.END)
output_text.insert(tk.END, "Syntax is valid")
else:
output_text.delete(1.0, tk.END)
output_text.insert(tk.END, "Invalid syntax")
def clear_input():
entry.delete(0, tk.END)
def load_file():
file_path = filedialog.askopenfilename(filetypes=[("Text files", "*.txt"), ("Python files", "*.py")])
if file_path:
with open(file_path, 'r') as file:
input_text = file.read()
entry.delete(0, tk.END)
entry.insert(tk.END, input_text)
def save_file():
file_path = filedialog.asksaveasfilename(defaultextension=".txt", filetypes=[("Text files", "*.txt"), ("Python files", "*.py")])
if file_path:
with open(file_path, 'w') as file:
file.write(entry.get())
# Create Tkinter window
window = tk.Tk()
window.title("Expression Calculator")
# Input box with yellow background
entry = tk.Entry(window, width=50, bg="yellow")
entry.pack(pady=10)
# Syntax Check Button
syntax_check_button = tk.Button(window, text="Syntax Check", command=syntax_check)
syntax_check_button.pack()
# Calculate Button
calculate_button = tk.Button(window, text="Calculate", command=calculate)
calculate_button.pack()
# Clear Input Button
clear_input_button = tk.Button(window, text="Clear Input", command=clear_input)
clear_input_button.pack()
# Load File Button
load_file_button = tk.Button(window, text="Load File", command=load_file)
load_file_button.pack()
# Save File Button
save_file_button = tk.Button(window, text="Save File", command=save_file)
save_file_button.pack()
# Output box
output_text = tk.Text(window, height=5, width=50)
output_text.pack(pady=10)
window.mainloop()
