从字符串中分隔整数和小数

def separate_integer_decimal(string):
    integer_part = ""
    decimal_part = ""
    is_decimal = False

    for char in string:
        if char.isdigit():
            if is_decimal:
                decimal_part += char
            else:
                integer_part += char
        elif char == '.':
            is_decimal = True

    integer_result = int(integer_part) if integer_part else 0
    decimal_result = float("0." + decimal_part) if decimal_part else 0.0

    return integer_result, decimal_result