Ha, biz matn kiritish uchun dasturni yangilashimiz mumkin. Biz eval () funksiyasini Python-da ifoda zanjirini baholash va natijani qaytarish uchun ishlatishimiz mumkin. Yangilangan kod: sinf Kalkulator: def __init__(o'zi): def def def calculate ((o'zi, ifoda): try: result = eval ((ifodani) qaytarish natijasi: return "Invalid expression" Endi siz Kalkulator sinfining bir instansiyasini yaratishingiz va calculate () usulidan foydalanib ifodani baholashingiz mumkin: calc = Calculator ((() result = calc.calculate ((("2 + 10 / 5") # natija 4.0 natija = calc.calculate ((("3 * 9 - 7") # natija 20 bo'ladi E'tibor bering, eval () funksiyasi har qanday Python ifodani baholashi mumkin. Shuning uchun kirish sanitizatsiya qilinganligiga va ishonchli manba
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