DIGITS ={'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9}
#exercise1
def normalize(name): if not isinstance(name, str): raise TypeError('') if name: name = name[0:1].upper() + name[1:].lower() return name
#exercise2
def prod(L): return reduce(lambda x, y: x * y, L)
#exercise 3
def str2float(s): dot_rindex = s.rfind('.') if dot_rindex == -1: return reduce(lambda x, y: x 10 + y, map(lambda x: DIGITS[x], s)) / 1.0 else: return reduce(lambda x, y: x 10 + y, map(lambda x: DIGITS[x], s[:dot_rindex] + s[dot_rindex+1:])) / 10 ** (len(s)-dot_rindex-1)
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Hfer_酸酸_乳川
DIGITS ={'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9}
#exercise1
def normalize(name): if not isinstance(name, str): raise TypeError('') if name: name = name[0:1].upper() + name[1:].lower() return name
#exercise2
def prod(L): return reduce(lambda x, y: x * y, L)
#exercise 3
def str2float(s): dot_rindex = s.rfind('.') if dot_rindex == -1: return reduce(lambda x, y: x 10 + y, map(lambda x: DIGITS[x], s)) / 1.0 else: return reduce(lambda x, y: x 10 + y, map(lambda x: DIGITS[x], s[:dot_rindex] + s[dot_rindex+1:])) / 10 ** (len(s)-dot_rindex-1)