• 2022-07-25
    以下对于字符串的相关操作,正确的输出结果是哪些选项?
    A: >>> 'Life is short, you need Python.'.find('you')
    15
    B: >>> seq = [1, 2, 3, 4];
    >>> sep = '+';
    >>> sep.join(seq)
    '1+2+3+4'
    C: >>> print('{:5.3f}'.format(math.pi))
    3.1416
    D: >>> print('you' in 'Life is short, you need Python.')
    True