已知table=''.maketrans('abcdefg','ABCDEFG'),那么表达式'dong fuguo'.translate(table)的值为:
A. 'DonG FuGuo'
B. 'Dong Fuguo'
C. 'DonG Fuguo'
D. 'Dong fuguo'
查看答案
表达式','.join(filter(str.isdigit,['a12','345','67b','89']))的值为:
A. '345,89'
B. '12,345,67,89'
C. '345,67,89'
D. '12,345,89'
表达式 ''.join(list('hello world')) 的值为:
表达式len('abcdefgfd'.strip('abfdg'))的值为:
表达式len(','.join(('a','b','c','d')))的值为: