الشروط: if و elif و else

score = 85
if score >= 90:
    print("A")
elif score >= 80:
    print("B")
else:
    print("C or below")

stock = 3
reorder_level = 5
if stock == 0:
    print("Out of stock!")
elif stock < reorder_level:
    print("Low stock: reorder soon")
else:
    print("Stock OK")