>>> str1 = ‘0123456789‘ >>> print(str1[:-5]) 01234 >>> str1 = ‘0123456789‘ >>> print(str1[:-5:-3]) 96 >>> >>> str1 = ‘0123456789‘ >>> print(str1[-5:-3]) 56 >>> print(str1[:-1]) 012345678 >>> print(str1[::-1]) 9876543210 >>> print(str1[::]) 0123456789 >>> print(str1[::-3]) 9630 >>> print(str1[::-]) SyntaxError: invalid syntax >>>
print(str1[:-5:-3])
时间: 2024-08-11 05:23:14