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вернуться в форумWA2 with re import re fl = re.compile('[+-]?[1234567890]*\.[1234567890]*([Ee][+-]?[1234567890]+)?') lf = re.compile('[+-]?[1234567890]+([Ee][+-]?[1234567890]+)?') nums = [] while True: first = input() if first == '#': break nums.append((first, int(input()))) for num in nums: num0 = num[0] if not (re.fullmatch(fl, num0) or re.fullmatch(lf, num0)): print('Not a floating point number') continue try: e_pos = num0.index('e') exp = int(num0[e_pos + 1:]) num0 = num0[:e_pos] except: try: e_pos = num0.index('E') exp = int(num0[e_pos + 1:]) num0 = num0[:e_pos] except: exp = 0 pm = num0[0] if pm in ['+', '-']: num0 = num0[1:] else: pm = '+' if pm == '+': pm = '' if exp > 0: num0 += '0' * exp elif exp < 0: num0 = '0' * (-exp) + num0 try: dot_pos = num0.index('.') except: dot_pos = len(num) num0 += '.' new_dot_pos = dot_pos + exp num0 = num0[:dot_pos] + num0[dot_pos + 1:] num0 = num0[:new_dot_pos] + '.' + num0[new_dot_pos:] while num0.startswith('0'): num0 = num0[1:] if num0.startswith('.'): num0 = '0' + num0 num0 += '0' * num[1] num0 = num0[:num0.index('.') + num[1] + 1] if num0.endswith('.'): num0 = num0[:-1] print(num0) |
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