Code Editor for app.py

import streamlit as st

st.title("Simple Calculator")

# Function to calculate the results
def calculate(num1, num2, operator):
    if operator == " + ":
        return num1 + num2
    elif operator == " - ":
        return num1 - num2
    elif operator == " * ":
        return num1 * num2
    elif operator == " / ":
        return num1 / num2
    else:
        return "Invalid operator"

# Input fields for the numbers and operator
num1 = st.number_input("Enter first number:", value=0)
num2 = st.number_input("Enter second number:", value=0)
operator = st.selectbox("Select an operator:", options=[" + ", " - ", " * ", " / "])

# Calculate and display the result
result = calculate(num1, num2, operator)
st.write(f"Result: {result}")